Array read by descending antidiagonals: A(n,k) is the number of oriented colorings of the facets of a regular n-dimensional orthoplex using up to k colors.

A325012

Array read by descending antidiagonals: A(n,k) is the number of oriented colorings of the facets of a regular n-dimensional orthoplex using up to k colors.

Terms

    a(0) =1a(1) =4a(2) =1a(3) =9a(4) =6a(5) =1a(6) =16a(7) =24a(8) =23a(9) =1a(10) =25a(11) =70a(12) =333a(13) =496a(14) =1a(15) =36a(16) =165a(17) =2916a(18) =230076a(19) =2275974a(20) =1a(21) =49a(22) =336a(23) =16725a(24) =22456756a(25) =965227578201a(27) =1a(28) =64a(29) =616a(30) =70911

External references