Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
A297697
Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
Terms
- a(0) =16a(1) =48a(2) =415a(3) =1774a(4) =12214a(5) =60904a(6) =378611a(7) =2026447a(8) =12017015a(9) =66465945a(10) =385592382a(11) =2165486783a(12) =12434785358a(13) =70330789227a(14) =401931843469
External references
- oeis: A297697