Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,1 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.

A155267

Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,1 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.

Terms

    a(0) =1a(1) =13a(2) =37a(3) =79a(4) =475a(5) =4903a(6) =39377a(7) =335194a(8) =4601560a(9) =86035793a(10) =1817145359a(11) =47456653666

External references