Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.
A295252
Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.
Terms
- a(0) =81a(1) =3082a(2) =132993a(3) =5611444a(4) =238620900a(5) =10130231034a(6) =430246838462
External references
- oeis: A295252