Number of n X 4 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s.
A295271
Number of n X 4 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s.
Terms
- a(0) =13a(1) =98a(2) =811a(3) =6659a(4) =54773a(5) =449827a(6) =3697742a(7) =30386185a(8) =249719021a(9) =2052217315a(10) =16865303569a(11) =138600705864
External references
- oeis: A295271