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

A155253

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

Terms

    a(0) =1a(1) =13a(2) =37a(3) =73a(4) =378a(5) =3421a(6) =36342a(7) =293256a(8) =3406317a(9) =59935388a(10) =1419179921a(11) =37034743264

External references