Number of 7Xn binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
A268892
Number of 7Xn binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =2285a(2) =60666a(3) =1706732a(4) =39670270a(5) =911930096a(6) =19876401224a(7) =426591159751
External references
- oeis: A268892