Number of ways to place zero or more nonadjacent 1,0 1,1 2,1 polyhexes in any orientation on a planar nXnXn triangular grid.
A155217
Number of ways to place zero or more nonadjacent 1,0 1,1 2,1 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =10a(4) =39a(5) =205a(6) =1026a(7) =7765a(8) =81639a(9) =968094a(10) =15354634a(11) =328541791a(12) =8661897260a(13) =294910384475
External references
- oeis: A155217