OA(256,16,2,5)

λ = 8, 2 / 22497

5 ≤ d(C) ≤ 6

ρ(C) ≤ 4

After reduction: 1 / 5

d(C) = 6

ρ(C) ≤ 4

↙    ↘

OA(128,15,2,4)

λ = 8, 3 / 17694

5 ≤ d(C) ≤ 6

ρ(C) ≤ 5

OA(128,15,2,4)

After reduction: 1 / 8

d(C) = 6

ρ(C) ≤ 5

After reduction: 1 / 8

  ↙     ↘   

   ↙     ↘  

OA(64,14,2,3)

λ = 8, 3971 / 31572

1 ≤ d(C) ≤ 6

ρ(C) ≤ 5

OA(64,14,2,3)

OA(64,14,2,3)

After reduction: 2124 / 22798

1 ≤ d(C) ≤ 6

ρ(C) ≤ 5

After reduction: 2124 / 22798

After reduction: 2124 / 22798

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,13,2,2)

λ = 8, 1329 / 16702

1 ≤ d(C) ≤ 6

ρ(C) ≤ 5

OA(32,13,2,2)

OA(32,13,2,2)

OA(32,13,2,2)

After reduction: 1268 / 16307

1 ≤ d(C) ≤ 6

ρ(C) ≤ 5

After reduction: 1268 / 16307

After reduction: 1268 / 16307

After reduction: 1268 / 16307

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,12,2,1)

λ = 8, 319546 / 554003

1 ≤ d(C) ≤ 6

ρ(C) ≤ 6

OA(16,12,2,1)

OA(16,12,2,1)

OA(16,12,2,1)

OA(16,12,2,1)

OA(256,15,2,5)

λ = 8, 4 / 12172

4 ≤ d(C) ≤ 5

ρ(C) ≤ 4

After reduction: 1 / 4

d(C) = 5

ρ(C) ≤ 3

↙    ↘

OA(128,14,2,4)

λ = 8, 4 / 10334

4 ≤ d(C) ≤ 5

ρ(C) ≤ 4

OA(128,14,2,4)

After reduction: 1 / 7

d(C) = 5

ρ(C) ≤ 4

After reduction: 1 / 7

  ↙     ↘   

   ↙     ↘  

OA(64,13,2,3)

λ = 8, 3110 / 18609

1 ≤ d(C) ≤ 5

ρ(C) ≤ 4

OA(64,13,2,3)

OA(64,13,2,3)

After reduction: 1896 / 13485

1 ≤ d(C) ≤ 5

ρ(C) ≤ 4

After reduction: 1896 / 13485

After reduction: 1896 / 13485

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,12,2,2)

λ = 8, 1179 / 10738

1 ≤ d(C) ≤ 5

ρ(C) ≤ 5

OA(32,12,2,2)

OA(32,12,2,2)

OA(32,12,2,2)

After reduction: 1134 / 10516

1 ≤ d(C) ≤ 5

ρ(C) ≤ 5

After reduction: 1134 / 10516

After reduction: 1134 / 10516

After reduction: 1134 / 10516

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,11,2,1)

λ = 8, 151217 / 252125

1 ≤ d(C) ≤ 5

ρ(C) ≤ 5

OA(16,11,2,1)

OA(16,11,2,1)

OA(16,11,2,1)

OA(16,11,2,1)

OA(256,14,2,5)

λ = 8, 65 / 6415

2 ≤ d(C) ≤ 4

ρ(C) ≤ 3

After reduction: 1 / 31

d(C) = 4

ρ(C) ≤ 3

↙    ↘

OA(128,13,2,4)

λ = 8, 99 / 5684

2 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(128,13,2,4)

After reduction: 6 / 561

d(C) = 4

ρ(C) ≤ 3

After reduction: 6 / 561

  ↙     ↘   

   ↙     ↘  

OA(64,12,2,3)

λ = 8, 2467 / 10887

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(64,12,2,3)

OA(64,12,2,3)

After reduction: 1572 / 7932

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

After reduction: 1572 / 7932

After reduction: 1572 / 7932

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,11,2,2)

λ = 8, 1005 / 6721

1 ≤ d(C) ≤ 5

ρ(C) ≤ 4

OA(32,11,2,2)

OA(32,11,2,2)

OA(32,11,2,2)

After reduction: 968 / 6559

1 ≤ d(C) ≤ 5

ρ(C) ≤ 4

After reduction: 968 / 6559

After reduction: 968 / 6559

After reduction: 968 / 6559

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,10,2,1)

λ = 8, 68464 / 109586

1 ≤ d(C) ≤ 5

ρ(C) ≤ 5

OA(16,10,2,1)

OA(16,10,2,1)

OA(16,10,2,1)

OA(16,10,2,1)

OA(256,13,2,5)

λ = 8, 163 / 3197

1 ≤ d(C) ≤ 4

ρ(C) ≤ 3

After reduction: 7 / 63

3 ≤ d(C) ≤ 4

ρ(C) ≤ 3

↙    ↘

OA(128,12,2,4)

λ = 8, 150 / 3025

2 ≤ d(C) ≤ 4

ρ(C) ≤ 3

OA(128,12,2,4)

After reduction: 55 / 1093

3 ≤ d(C) ≤ 4

ρ(C) ≤ 3

After reduction: 55 / 1093

  ↙     ↘   

   ↙     ↘  

OA(64,11,2,3)

λ = 8, 1670 / 5823

1 ≤ d(C) ≤ 4

ρ(C) ≤ 3

OA(64,11,2,3)

OA(64,11,2,3)

After reduction: 1142 / 4373

1 ≤ d(C) ≤ 4

ρ(C) ≤ 3

After reduction: 1142 / 4373

After reduction: 1142 / 4373

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,10,2,2)

λ = 8, 808 / 4054

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(32,10,2,2)

OA(32,10,2,2)

OA(32,10,2,2)

After reduction: 769 / 3947

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

After reduction: 769 / 3947

After reduction: 769 / 3947

After reduction: 769 / 3947

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,9,2,1)

λ = 8, 29463 / 45207

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(16,9,2,1)

OA(16,9,2,1)

OA(16,9,2,1)

OA(16,9,2,1)

OA(256,12,2,5)

λ = 8, 258 / 1656

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

After reduction: 10 / 57

2 ≤ d(C) ≤ 3

ρ(C) ≤ 2

↙    ↘

OA(128,11,2,4)

λ = 8, 196 / 1584

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(128,11,2,4)

After reduction: 67 / 599

2 ≤ d(C) ≤ 3

ρ(C) ≤ 3

After reduction: 67 / 599

  ↙     ↘   

   ↙     ↘  

OA(64,10,2,3)

λ = 8, 1151 / 3080

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(64,10,2,3)

OA(64,10,2,3)

After reduction: 805 / 2289

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

After reduction: 805 / 2289

After reduction: 805 / 2289

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,9,2,2)

λ = 8, 613 / 2282

1 ≤ d(C) ≤ 4

ρ(C) ≤ 3

OA(32,9,2,2)

OA(32,9,2,2)

OA(32,9,2,2)

After reduction: 579 / 2197

1 ≤ d(C) ≤ 4

ρ(C) ≤ 3

After reduction: 579 / 2197

After reduction: 579 / 2197

After reduction: 579 / 2197

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,8,2,1)

λ = 8, 11975 / 17575

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(16,8,2,1)

OA(16,8,2,1)

OA(16,8,2,1)

OA(16,8,2,1)

OA(256,11,2,5)

λ = 8, 259 / 856

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

After reduction: 12 / 42

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

↙    ↘

OA(128,10,2,4)

λ = 8, 184 / 814

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

OA(128,10,2,4)

After reduction: 74 / 364

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

After reduction: 74 / 364

  ↙     ↘   

   ↙     ↘  

OA(64,9,2,3)

λ = 8, 647 / 1426

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(64,9,2,3)

OA(64,9,2,3)

After reduction: 480 / 1082

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

After reduction: 480 / 1082

After reduction: 480 / 1082

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,8,2,2)

λ = 8, 415 / 1187

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(32,8,2,2)

OA(32,8,2,2)

OA(32,8,2,2)

After reduction: 399 / 1157

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

After reduction: 399 / 1157

After reduction: 399 / 1157

After reduction: 399 / 1157

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,7,2,1)

λ = 8, 4548 / 6375

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(16,7,2,1)

OA(16,7,2,1)

OA(16,7,2,1)

OA(16,7,2,1)

OA(256,10,2,5)

λ = 8, 147 / 372

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

After reduction: 25 / 68

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

↙    ↘

OA(128,9,2,4)

λ = 8, 132 / 378

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(128,9,2,4)

After reduction: 68 / 205

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

After reduction: 68 / 205

  ↙     ↘   

   ↙     ↘  

OA(64,8,2,3)

λ = 8, 369 / 652

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(64,8,2,3)

OA(64,8,2,3)

After reduction: 293 / 528

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

After reduction: 293 / 528

After reduction: 293 / 528

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,7,2,2)

λ = 8, 267 / 593

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(32,7,2,2)

OA(32,7,2,2)

OA(32,7,2,2)

After reduction: 255 / 571

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

After reduction: 255 / 571

After reduction: 255 / 571

After reduction: 255 / 571

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,6,2,1)

λ = 8, 1601 / 2137

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(16,6,2,1)

OA(16,6,2,1)

OA(16,6,2,1)

OA(16,6,2,1)

OA(256,9,2,5)

λ = 8, 113 / 182

1 ≤ d(C) ≤ 2

ρ(C) = 1

After reduction: 61 / 114

1 ≤ d(C) ≤ 2

ρ(C) = 1

↙    ↘

OA(128,8,2,4)

λ = 8, 99 / 188

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(128,8,2,4)

After reduction: 66 / 128

1 ≤ d(C) ≤ 2

ρ(C) = 1

After reduction: 66 / 128

  ↙     ↘   

   ↙     ↘  

OA(64,7,2,3)

λ = 8, 162 / 249

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(64,7,2,3)

OA(64,7,2,3)

After reduction: 133 / 205

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

After reduction: 133 / 205

After reduction: 133 / 205

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,6,2,2)

λ = 8, 142 / 250

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(32,6,2,2)

OA(32,6,2,2)

OA(32,6,2,2)

After reduction: 134 / 240

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

After reduction: 134 / 240

After reduction: 134 / 240

After reduction: 134 / 240

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,5,2,1)

λ = 8, 511 / 649

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(16,5,2,1)

OA(16,5,2,1)

OA(16,5,2,1)

OA(16,5,2,1)

OA(256,8,2,5)

λ = 8, 52 / 72

d(C) = 1

ρ(C) = 1

After reduction: 41 / 59

d(C) = 1

ρ(C) = 1

↙    ↘

OA(128,7,2,4)

λ = 8, 48 / 71

d(C) = 1

ρ(C) = 1

OA(128,7,2,4)

After reduction: 41 / 61

d(C) = 1

ρ(C) = 1

After reduction: 41 / 61

  ↙     ↘   

   ↙     ↘  

OA(64,6,2,3)

λ = 8, 73 / 93

d(C) = 1

ρ(C) = 1

OA(64,6,2,3)

OA(64,6,2,3)

After reduction: 59 / 78

d(C) = 1

ρ(C) = 1

After reduction: 59 / 78

After reduction: 59 / 78

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,5,2,2)

λ = 8, 66 / 93

1 ≤ d(C) ≤ 2

ρ(C) = 1

OA(32,5,2,2)

OA(32,5,2,2)

OA(32,5,2,2)

After reduction: 62 / 89

1 ≤ d(C) ≤ 2

ρ(C) = 1

After reduction: 62 / 89

After reduction: 62 / 89

After reduction: 62 / 89

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,4,2,1)

λ = 8, 147 / 177

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(16,4,2,1)

OA(16,4,2,1)

OA(16,4,2,1)

OA(16,4,2,1)

OA(256,7,2,5)

λ = 8, 20 / 25

d(C) = 1

ρ(C) = 1

After reduction: 20 / 25

d(C) = 1

ρ(C) = 1

↙    ↘

OA(128,6,2,4)

λ = 8, 20 / 25

d(C) = 1

ρ(C) = 1

OA(128,6,2,4)

After reduction: 20 / 25

d(C) = 1

ρ(C) = 1

After reduction: 20 / 25

  ↙     ↘   

   ↙     ↘  

OA(64,5,2,3)

λ = 8, 23 / 28

d(C) = 1

ρ(C) = 1

OA(64,5,2,3)

OA(64,5,2,3)

After reduction: 23 / 28

d(C) = 1

ρ(C) = 1

After reduction: 23 / 28

After reduction: 23 / 28

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,4,2,2)

λ = 8, 23 / 29

d(C) = 1

ρ(C) = 1

OA(32,4,2,2)

OA(32,4,2,2)

OA(32,4,2,2)

After reduction: 23 / 29

d(C) = 1

ρ(C) = 1

After reduction: 23 / 29

After reduction: 23 / 29

After reduction: 23 / 29

  ↙    ↘   

  ↙    ↘   

  ↙    ↘   

   ↙    ↘  

OA(16,3,2,1)

λ = 8, 36 / 41

d(C) = 1

ρ(C) = 1

OA(16,3,2,1)

OA(16,3,2,1)

OA(16,3,2,1)

OA(16,3,2,1)

OA(256,6,2,5)

λ = 8, 8 / 9

d(C) = 1

ρ(C) = 1

↙    ↘

OA(128,5,2,4)

λ = 8, 8 / 9

d(C) = 1

ρ(C) = 1

OA(128,5,2,4)

  ↙     ↘   

   ↙     ↘  

OA(64,4,2,3)

λ = 8, 8 / 9

d(C) = 1

ρ(C) = 1

OA(64,4,2,3)

OA(64,4,2,3)

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,3,2,2)

λ = 8, 8 / 9

d(C) = 1

ρ(C) = 1

OA(32,3,2,2)

OA(32,3,2,2)

OA(32,3,2,2)

  ↙     ↘   

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(16,2,2,1)

λ = 8, 8 / 9

d(C) = 1

ρ(C) = 1

OA(16,2,2,1)

OA(16,2,2,1)

OA(16,2,2,1)

OA(16,2,2,1)

OA(256,5,2,5)

λ = 8, 1 / 1

d(C) = 1

ρ(C) = 0

↙    ↘

OA(128,4,2,4)

λ = 8, 1 / 1

d(C) = 1

ρ(C) = 0

OA(128,4,2,4)

  ↙     ↘   

   ↙     ↘  

OA(64,3,2,3)

λ = 8, 1 / 1

d(C) = 1

ρ(C) = 0

OA(64,3,2,3)

OA(64,3,2,3)

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(32,2,2,2)

λ = 8, 1 / 1

d(C) = 1

ρ(C) = 0

OA(32,2,2,2)

OA(32,2,2,2)

OA(32,2,2,2)

  ↙     ↘   

  ↙     ↘   

  ↙     ↘   

   ↙     ↘  

OA(16,1,2,1)

λ = 8, 1 / 1

d(C) = 1

ρ(C) = 0

OA(16,1,2,1)

OA(16,1,2,1)

OA(16,1,2,1)

OA(16,1,2,1)