Number of ways to place zero or more nonadjacent 1,1 2,1 3,1 4,0 4,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155280
Number of ways to place zero or more nonadjacent 1,1 2,1 3,1 4,0 4,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =168a(5) =718a(6) =3579a(7) =25444a(8) =183468a(9) =1516279a(10) =16609058a(11) =206526436a(12) =3056554913a(13) =55553877912
External references
- oeis: A155280