Number of 5Xn 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
A268975
Number of 5Xn 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =243a(1) =8448a(2) =114048a(3) =1504656a(4) =18852912a(5) =231730344a(6) =2799406656a(7) =33382885464a(8) =393837138576
External references
- oeis: A268975