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

A155359

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =106a(5) =470a(6) =2439a(7) =14648a(8) =89078a(9) =630810a(10) =5607878a(11) =61467315a(12) =775395804a(13) =11138538259a(14) =187481058138

External references