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

A155310

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

Terms

    a(0) =1a(1) =7a(2) =25a(3) =55a(4) =184a(5) =1073a(6) =8931a(7) =73812a(8) =639377a(9) =7143496a(10) =110082014a(11) =2154472585a(12) =48658986855

External references