Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.

A155239

Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =144a(5) =940a(6) =6913a(7) =44442a(8) =383165a(9) =4775804a(10) =73750670a(11) =1270986469a(12) =26693174009a(13) =724206936085

External references