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

A155317

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =82a(5) =477a(6) =3794a(7) =21306a(8) =111679a(9) =917243a(10) =11877917a(11) =168569675a(12) =2255808102a(13) =36229000672a(14) =799414704118

External references