Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 4,1 5,1 6,0 6,1 polyhexes in any orientation on a planar n X n X n triangular grid.
A155399
Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 4,1 5,1 6,0 6,1 polyhexes in any orientation on a planar n X n X n triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =43a(4) =239a(5) =1041a(6) =3863a(7) =18481a(8) =111137a(9) =720077a(10) =5291974a(11) =48305684
External references
- oeis: A155399