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

A155434

Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,2 3,0 4,0 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) =67a(5) =293a(6) =1143a(7) =6649a(8) =34591a(9) =193101a(10) =1138893a(11) =9302387a(12) =87311631a(13) =959238749a(14) =11114012263a(15) =149535615901

External references