Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 4,1 5,1 6,2 7,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155419
Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 4,1 5,1 6,2 7,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =52a(4) =207a(5) =826a(6) =3466a(7) =17019a(8) =96663a(9) =608856a(10) =4591353a(11) =39344454
External references
- oeis: A155419