Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 4,2 4,3 5,2 6,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155394
Number of ways to place zero or more nonadjacent 1,1 2,1 3,0 3,1 4,2 4,3 5,2 6,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =67a(5) =219a(6) =1086a(7) =6381a(8) =31966a(9) =154641a(10) =952314a(11) =7600004a(12) =73667522a(13) =781898311a(14) =8779500403
External references
- oeis: A155394