Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 4,1 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
A155291
Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 4,1 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =25a(3) =70a(4) =430a(5) =2529a(6) =13389a(7) =123723a(8) =1442773a(9) =16315566a(10) =272990681a(11) =5489382645
External references
- oeis: A155291