Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.
A295348
Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.
Terms
- a(0) =8a(1) =51a(2) =299a(3) =1877a(4) =11964a(5) =76688a(6) =499257a(7) =3279206a(8) =21697056a(9) =144429002a(10) =965780867a(11) =6480771257a(12) =43605576174a(13) =293995977295
External references
- oeis: A295348