Number of nX3 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.
A297501
Number of nX3 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.
Terms
- a(0) =4a(1) =31a(2) =110a(3) =531a(4) =2534a(5) =11405a(6) =53175a(7) =246040a(8) =1135117a(9) =5253716a(10) =24286811a(11) =112274796a(12) =519155469a(13) =2400230989a(14) =11097385328a(15) =51309028043a(16) =237225520918
External references
- oeis: A297501