Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 3,2 3,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155268
Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 3,2 3,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =43a(4) =106a(5) =668a(6) =7101a(7) =59172a(8) =470802a(9) =4838017a(10) =83647134a(11) =1916327385a(12) =46633700220
External references
- oeis: A155268