Number of 3Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.
A297656
Number of 3Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.
Terms
- a(0) =1a(1) =36a(2) =231a(3) =1073a(4) =6838a(5) =45036a(6) =268655a(7) =1617465a(8) =9996907a(9) =61298132a(10) =373667037a(11) =2285559013a(12) =13993745417a(13) =85580111107a(14) =523343997645
External references
- oeis: A297656