Number of nX7 0..3 arrays with some element plus some horizontally, antidiagonally or vertically adjacent neighbor totalling three no more than once.
A269142
Number of nX7 0..3 arrays with some element plus some horizontally, antidiagonally or vertically adjacent neighbor totalling three no more than once.
Terms
- a(0) =8748a(1) =2727564a(2) =732561916a(3) =186315931804
External references
- oeis: A269142