Array read by descending antidiagonals: T(n,k) is the number of unoriented colorings of the faces of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.
A337892
Array read by descending antidiagonals: T(n,k) is the number of unoriented colorings of the faces of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =3a(4) =22a(5) =1a(6) =4a(7) =267a(8) =11251322a(9) =1a(10) =5a(11) =1996a(14) =1a(15) =6a(16) =10375a(20) =1
External references
- oeis: A337892