Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 4,2 5,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.

A155349

Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 4,2 5,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =100a(5) =428a(6) =1794a(7) =11180a(8) =68280a(9) =460602a(10) =3595480a(11) =35769940a(12) =408682401a(13) =5473453986a(14) =84561686844

External references