Number of ways to place zero or more nonadjacent 1,0 2,0 2,1 2,2 3,0 4,0 polyhexes in any orientation on a planar nXnXn triangular grid.
A155254
Number of ways to place zero or more nonadjacent 1,0 2,0 2,1 2,2 3,0 4,0 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =25a(3) =76a(4) =295a(5) =1744a(6) =13870a(7) =129297a(8) =1393351a(9) =18761115a(10) =322004760a(11) =6998296402a(12) =187297012609
External references
- oeis: A155254