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

A155262

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

Terms

    a(0) =1a(1) =13a(2) =37a(3) =73a(4) =270a(5) =3023a(6) =31666a(7) =204526a(8) =1765714a(9) =30617532a(10) =748500437a(11) =15766186082a(12) =363909913887

External references