Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,0 3,1 4,1 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
A155374
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,0 3,1 4,1 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =52a(4) =254a(5) =1061a(6) =4586a(7) =28708a(8) =218507a(9) =1736540a(10) =17357415a(11) =205447067a(12) =2686619638
External references
- oeis: A155374