121046

Appears in sequences

• Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 2,2 3,1 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155250
• a(n) = 144*n^2 - 2*n.at n=28A158135