Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 3,2 4,1 5,2 6,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155395
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 3,2 4,1 5,2 6,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =82a(5) =304a(6) =1597a(7) =8409a(8) =37756a(9) =200483a(10) =1450289a(11) =12807392a(12) =119527765a(13) =1178177160
External references
- oeis: A155395