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

A325004

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

Terms

    a(0) =1a(1) =4a(2) =1a(3) =9a(4) =6a(5) =1a(6) =16a(7) =24a(8) =10a(9) =1a(10) =25a(11) =70a(12) =57a(13) =15a(14) =1a(15) =36a(16) =165a(17) =240a(18) =126a(19) =21a(20) =1a(21) =49a(22) =336a(23) =800a(24) =730a(25) =252a(26) =28a(27) =1a(28) =64a(29) =616

External references