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

A155413

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

Terms

    a(0) =1a(1) =4a(2) =13a(3) =28a(4) =111a(5) =502a(6) =1855a(7) =7742a(8) =47738a(9) =322725a(10) =2215451a(11) =20024605a(12) =210636607

External references