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

A155439

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =61a(5) =224a(6) =1849a(7) =11422a(8) =49927a(9) =232499a(10) =1829873a(11) =22757837a(12) =281467930a(13) =3021365293a(14) =36143191129a(15) =595788136987

External references