Array read by descending antidiagonals: T(n,k) is the number of achiral colorings of the edges of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.

A337414

Array read by descending antidiagonals: T(n,k) is the number of achiral colorings of the edges of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.

Terms

    a(0) =1a(1) =2a(2) =1a(3) =3a(4) =6a(5) =1a(6) =4a(7) =18a(8) =70a(9) =1a(10) =5a(11) =40a(12) =1407a(13) =8200a(14) =1a(15) =6a(16) =75a(17) =12480a(18) =9080559a(19) =12804908a(20) =1a(21) =7a(22) =126a(23) =69050a(24) =1503323520a(26) =304899216832a(27) =1a(28) =8a(29) =196a(30) =281946

External references