Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,0 3,1 3,2 4,0 polyhexes in any orientation on a planar nXnXn triangular grid.
A155341
Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,0 3,1 3,2 4,0 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =4a(2) =10a(3) =22a(4) =55a(5) =194a(6) =784a(7) =4435a(8) =26044a(9) =168125a(10) =1273021a(11) =11736308a(12) =129333849a(13) =1686140456a(14) =25343021943a(15) =443460444588
External references
- oeis: A155341