Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 3,2 4,2 5,3 6,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155417
Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 3,2 4,2 5,3 6,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =103a(5) =427a(6) =2227a(7) =11583a(8) =57485a(9) =387397a(10) =3244887a(11) =30976146a(12) =318914841
External references
- oeis: A155417