OA(18,7,3,2)

λ = 2, 2 / 43

3 ≤ d(C) ≤ 4

ρ(C) ≤ 4

After reduction: 1 / 33

d(C) = 4

ρ(C) ≤ 4

↙    ↘

OA(6,6,3,1)

λ = 2, 10 / 39

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(12,6,3,1)

λ = 4, 170 / 382

1 ≤ d(C) ≤ 4

ρ(C) ≤ 4

OA(18,6,3,2)

λ = 2, 3 / 27

3 ≤ d(C) ≤ 4

ρ(C) ≤ 3

After reduction: 3 / 21

3 ≤ d(C) ≤ 4

ρ(C) ≤ 3

↙    ↘

OA(6,5,3,1)

λ = 2, 7 / 23

1 ≤ d(C) ≤ 4

ρ(C) ≤ 3

OA(12,5,3,1)

λ = 4, 77 / 154

1 ≤ d(C) ≤ 3

ρ(C) ≤ 3

OA(18,5,3,2)

λ = 2, 3 / 13

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

After reduction: 3 / 11

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

↙    ↘

OA(6,4,3,1)

λ = 2, 5 / 13

1 ≤ d(C) ≤ 3

ρ(C) ≤ 2

OA(12,4,3,1)

λ = 4, 33 / 57

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(18,4,3,2)

λ = 2, 4 / 9

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

After reduction: 3 / 8

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

↙    ↘

OA(6,3,3,1)

λ = 2, 3 / 7

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(12,3,3,1)

λ = 4, 12 / 19

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(18,3,3,2)

λ = 2, 2 / 3

d(C) = 1

ρ(C) = 1

↙    ↘

OA(6,2,3,1)

λ = 2, 2 / 3

d(C) = 1

ρ(C) = 1

OA(12,2,3,1)

λ = 4, 4 / 5

d(C) = 1

ρ(C) = 1

OA(18,2,3,2)

λ = 2, 1 / 1

d(C) = 1

ρ(C) = 0

↙    ↘

OA(6,1,3,1)

λ = 2, 1 / 1

d(C) = 1

ρ(C) = 0

OA(12,1,3,1)

λ = 4, 1 / 1

d(C) = 1

ρ(C) = 0