Number of n X 4 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

A269210

Number of n X 4 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

Terms

    a(0) =108a(1) =6528a(2) =308544a(3) =12548544a(4) =474091776a(5) =17118725376a(6) =599456856000

External references