Number of n X 4 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.
A269197
Number of n X 4 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.
Terms
- a(0) =216a(1) =9612a(2) =400428a(3) =15289548a(4) =555862380a(5) =19558138380a(6) =672230393004
External references
- oeis: A269197