Number of 5Xn binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
A268890
Number of 5Xn binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =235a(2) =2418a(3) =31956a(4) =317966a(5) =3283890a(6) =31427480a(7) =299524050a(8) =2777161184a(9) =25505113994a(10) =231143340184
External references
- oeis: A268890