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

A155250

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

Terms

    a(0) =1a(1) =7a(2) =25a(3) =55a(4) =126a(5) =1606a(6) =18444a(7) =121046a(8) =869192a(9) =17245415a(10) =494281520a(11) =10371088568a(12) =228981497623

External references