Number of nX5 0..2 arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A268771
Number of nX5 0..2 arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =96a(1) =248a(2) =1524a(3) =10340a(4) =64112a(5) =387146a(6) =2258084a(7) =12951796a(8) =73011192a(9) =406925194a(10) =2244513800a(11) =12281806624a(12) =66734787464a(13) =360505595710
External references
- oeis: A268771