Number of nX4 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
A297678
Number of nX4 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
Terms
- a(0) =13a(1) =80a(2) =629a(3) =4633a(4) =34872a(5) =260924a(6) =1955750a(7) =14651847a(8) =109783269a(9) =822547725a(10) =6162992737a(11) =46176452589a(12) =345979170190
External references
- oeis: A297678