Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,1 3,0 3,1 polyhexes in any orientation on a planar nXnXn triangular grid.
A155248
Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,1 3,0 3,1 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =209a(5) =1577a(6) =10287a(7) =78555a(8) =928301a(9) =14022349a(10) =239786776a(11) =5085100887a(12) =142197577695
External references
- oeis: A155248