Number of n X n binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269005
Number of n X n binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =4a(2) =46a(3) =2136a(4) =109058a(5) =14382480a(6) =3258530608
External references
- oeis: A269005