1574400domain: NAppears in sequences"BIK" (reversible, indistinct, unlabeled) transform of 3,3,3,3...at n=10A032125Number of n-colorings of the 4 X 4 X 4 triangular grid.at n=6A182789Square array A(n,k), n>=1, k>=1, read by antidiagonals: A(n,k) is the number of n-colorings of the k X k X k triangular grid.at n=41A182797