Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,0 4,1 4,2 5,0 polyhexes in any orientation on a planar nXnXn triangular grid.
A155426
Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,0 4,1 4,2 5,0 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =4a(2) =10a(3) =22a(4) =55a(5) =188a(6) =612a(7) =2433a(8) =12227a(9) =68641a(10) =419235a(11) =2949869a(12) =24062426a(13) =221080988a(14) =2326692356
External references
- oeis: A155426