Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,3 5,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155312
Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,3 5,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =43a(4) =172a(5) =775a(6) =4404a(7) =27025a(8) =209013a(9) =1889445a(10) =19997883a(11) =257549066a(12) =3935142613
External references
- oeis: A155312