Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s.
A297752
Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s.
Terms
- a(0) =1a(1) =24a(2) =230a(3) =852a(4) =3780a(5) =28540a(6) =187564a(7) =1003470a(8) =5652212a(9) =35138340a(10) =212926852a(11) =1237635874a(12) =7275468358a(13) =43582711216a(14) =259742505976
External references
- oeis: A297752