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

A155411

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =76a(5) =258a(6) =1393a(7) =9223a(8) =50174a(9) =277825a(10) =1912295a(11) =17811734a(12) =207588822a(13) =2624271308a(14) =35563828726a(15) =553613643453

External references