110575

Appears in sequences

• Number of nonnegative integer 3 X 3 matrices with no zero rows or columns and with sum of elements equal to n, up to row and column permutation.at n=18A054975
• Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 2,2 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155232