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

A155378

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =67a(5) =314a(6) =2337a(7) =14010a(8) =66473a(9) =405331a(10) =3843288a(11) =47944694a(12) =600390745a(13) =7673166649a(14) =120741723116

External references