Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.
A297765
Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.
Terms
- a(0) =1a(1) =7a(2) =186a(3) =1181a(4) =7081a(5) =73352a(6) =759243a(7) =6588378a(8) =57693478a(9) =533724767a(10) =4922696680a(11) =44623406796a(12) =405152379143
External references
- oeis: A297765