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

A155437

Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,2 3,1 3,2 4,1 5,1 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) =1830a(7) =11336a(8) =67788a(9) =454698a(10) =3575689a(11) =35749465a(12) =410313440a(13) =5458200826a(14) =83668909890

External references