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

A155256

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

Terms

    a(0) =1a(1) =7a(2) =25a(3) =55a(4) =244a(5) =1426a(6) =10764a(7) =97667a(8) =1037959a(9) =13184770a(10) =219939446a(11) =4610420436a(12) =119066459836

External references