Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,2 4,3 4,4 5,3 5,4 polyhexes in any orientation on a planar nXnXn triangular grid.
A155424
Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,2 4,3 4,4 5,3 5,4 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =97a(5) =385a(6) =1752a(7) =10474a(8) =62128a(9) =377334a(10) =2749676a(11) =25769709a(12) =285285035a(13) =3566431622a(14) =50164255930a(15) =808544899113
External references
- oeis: A155424