Number of n X 5 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
A268901
Number of n X 5 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =96a(1) =2664a(2) =54936a(3) =1004184a(4) =17194680a(5) =282550680a(6) =4513169016a(7) =70609114584
External references
- oeis: A268901