1/9 of the number of 9-colorings of a planar n X n X n triangular grid.
A153472
1/9 of the number of 9-colorings of a planar n X n X n triangular grid.
Terms
- a(0) =1a(1) =56a(2) =19208a(3) =40356008a(4) =519359253560
External references
- oeis: A153472