Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 3,0 polyhexes in any orientation on a planar nXnXn triangular grid.
A155233
Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 3,0 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =25a(3) =82a(4) =574a(5) =3503a(6) =36335a(7) =487910a(8) =7124817a(9) =157571588a(10) =4154930503a(11) =146494880857
External references
- oeis: A155233