Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155273
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =46a(4) =163a(5) =1024a(6) =6441a(7) =43301a(8) =373095a(9) =4261954a(10) =57065692a(11) =918668240a(12) =18051831843a(13) =438138199809
External references
- oeis: A155273