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

A155358

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =82a(5) =439a(6) =3622a(7) =21277a(8) =115970a(9) =907157a(10) =11150700a(11) =162360713a(12) =2286713291a(13) =36892603949a(14) =784002340205

External references