206340

Appears in sequences

• Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 3,2 3,3 polyhexes in any orientation on a planar nXnXn triangular grid.at n=9A155287
• Expansion of e.g.f. exp( -(exp(x) - 1)^3 / 6 ).at n=10A354396