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

A155303

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =43a(4) =94a(5) =494a(6) =5695a(7) =45904a(8) =323395a(9) =2883082a(10) =44465095a(11) =991227125a(12) =21279544840a(13) =498763157584

External references