Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 3 or 4 1s.
A295550
Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 3 or 4 1s.
Terms
- a(0) =13a(1) =276a(2) =4374a(3) =78434a(4) =1385901a(5) =24486926a(6) =434357928a(7) =7703929911a(8) =136731507572
External references
- oeis: A295550