Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 2,2 3,1 3,3 4,2 4,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155361
Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 2,2 3,1 3,3 4,2 4,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =61a(5) =398a(6) =3352a(7) =18677a(8) =76887a(9) =524948a(10) =7212413a(11) =105020342a(12) =1220235443a(13) =15236713872a(14) =301443806483
External references
- oeis: A155361