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

A155327

Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 3,2 4,2 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) =382a(6) =2724a(7) =16177a(8) =82034a(9) =576215a(10) =5993574a(11) =76883371a(12) =996696560a(13) =14175824222a(14) =255455613029

External references