Number of 3 X n binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
A269077
Number of 3 X n binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =8a(1) =32a(2) =123a(3) =521a(4) =1887a(5) =7477a(6) =27042a(7) =102070a(8) =368391a(9) =1351259a(10) =4850557a(11) =17489481a(12) =62373468a(13) =222422348a(14) =788291635a(15) =2789267661a(16) =9831173339a(17) =34583332541a(18) =121320954422a(19) =424799241314
External references
- oeis: A269077