Number of nX4 binary arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.
A268746
Number of nX4 binary arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.
Terms
- a(0) =13a(1) =89a(2) =623a(3) =4110a(4) =26334a(5) =165019a(6) =1016807a(7) =6183665a(8) =37209717a(9) =221970102a(10) =1314544140a(11) =7737069617a(12) =45297553803a(13) =263980824665
External references
- oeis: A268746