Number of ways to place zero or more nonadjacent 2,0 3,1 4,2 4,3 4,4 5,2 6,2 7,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155448
Number of ways to place zero or more nonadjacent 2,0 3,1 4,2 4,3 4,4 5,2 6,2 7,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =61a(5) =198a(6) =925a(7) =4932a(8) =25307a(9) =120759a(10) =705438a(11) =5070257a(12) =44891211a(13) =447175598a(14) =4812407060a(15) =57607358493
External references
- oeis: A155448