Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.
A297460
Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.
Terms
- a(0) =16a(1) =48a(2) =390a(3) =1677a(4) =10579a(5) =52714a(6) =303202a(7) =1595942a(8) =8870125a(9) =47677361a(10) =261582358a(11) =1417183936a(12) =7737647802a(13) =42045961903a(14) =229144537845
External references
- oeis: A297460