Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1s.
A297804
Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1s.
Terms
- a(0) =1a(1) =7a(2) =108a(3) =422a(4) =2195a(5) =16006a(6) =115773a(7) =738989a(8) =4837309a(9) =32657747a(10) =219582492a(11) =1461795891a(12) =9752902800a(13) =65247730522a(14) =436241303976
External references
- oeis: A297804