1/4 of the number of 4-colorings of a planar n X n X n triangular grid.
A153467
1/4 of the number of 4-colorings of a planar n X n X n triangular grid.
Terms
- a(0) =1a(1) =6a(2) =48a(3) =528a(4) =8160a(5) =179520a(6) =5666304a(7) =257819136a(8) =16962407424
External references
- oeis: A153467