Number of 5Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.
A269218
Number of 5Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.
Terms
- a(0) =0a(1) =103488a(2) =6712704a(3) =474091776a(4) =30541426560
External references
- oeis: A269218