Number of 5Xn 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269039
Number of 5Xn 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =1944a(2) =12228a(3) =146064a(4) =1326576a(5) =13031664a(6) =119790816a(7) =1105914780a(8) =9987532176a(9) =89650751964a(10) =796324353216
External references
- oeis: A269039