Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.
A297767
Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.
Terms
- a(0) =1a(1) =31a(2) =5685a(3) =90727a(4) =1456855a(5) =59707529a(6) =2301783905a(7) =66213677238
External references
- oeis: A297767