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

A155342

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

Terms

    a(0) =1a(1) =7a(2) =19a(3) =37a(4) =82a(5) =361a(6) =2515a(7) =15385a(8) =83649a(9) =564736a(10) =5375347a(11) =66177036a(12) =879906596a(13) =12668769870a(14) =218134701822

External references