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

A155305

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

Terms

    a(0) =1a(1) =7a(2) =25a(3) =64a(4) =217a(5) =1298a(6) =10738a(7) =90390a(8) =827265a(9) =9950319a(10) =159818687a(11) =3209355205a(12) =75527888278

External references