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

A155362

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

Terms

    a(0) =1a(1) =4a(2) =10a(3) =19a(4) =31a(5) =142a(6) =704a(7) =3110a(8) =11340a(9) =67080a(10) =521405a(11) =4456035a(12) =36267075a(13) =359062706a(14) =4494388097a(15) =66854020627

External references