Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,2 3,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155275
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 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) =578a(6) =6127a(7) =50784a(8) =412459a(9) =4183946a(10) =65535514a(11) =1436245357a(12) =34233363901a(13) =941805410568
External references
- oeis: A155275