Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 polyhexes in any orientation on a planar nXnXn triangular grid.
A155222
Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =13a(2) =37a(3) =184a(4) =1433a(5) =15532a(6) =213600a(7) =3754855a(8) =93144364a(9) =3159998575a(10) =143228568126
External references
- oeis: A155222