Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1s.
A297518
Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1s.
Terms
- a(0) =13a(1) =529a(2) =5079a(3) =85843a(4) =1671315a(5) =25184119a(6) =424461759a(7) =7287075949a(8) =119542912709
External references
- oeis: A297518