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

A155353

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =82a(5) =439a(6) =3646a(7) =20995a(8) =111047a(9) =888450a(10) =11127243a(11) =160502934a(12) =2195406729a(13) =35231318268a(14) =762257930909

External references