OA(9,4,3,2)

λ = 1, 1 / 4

d(C) = 3

ρ(C) ≤ 2

↙    ↘

OA(3,3,3,1)

λ = 1, 1 / 3

d(C) = 3

ρ(C) ≤ 2

OA(6,3,3,1)

λ = 2, 3 / 7

1 ≤ d(C) ≤ 2

ρ(C) ≤ 2

OA(9,3,3,2)

λ = 1, 1 / 2

d(C) = 2

ρ(C) = 1

↙    ↘

OA(3,2,3,1)

λ = 1, 1 / 2

d(C) = 2

ρ(C) = 1

OA(6,2,3,1)

λ = 2, 2 / 3

d(C) = 1

ρ(C) = 1

OA(9,2,3,2)

λ = 1, 1 / 1

d(C) = 1

ρ(C) = 0

↙    ↘

OA(3,1,3,1)

λ = 1, 1 / 1

d(C) = 1

ρ(C) = 0

OA(6,1,3,1)

λ = 2, 1 / 1

d(C) = 1

ρ(C) = 0