Number of nX6 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269009
Number of nX6 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =20a(1) =272a(2) =4948a(3) =73568a(4) =1049588a(5) =14382480a(6) =192100836a(7) =2516546784a(8) =32481770852a(9) =414339126768
External references
- oeis: A269009