Number of nX4 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s.
A297745
Number of nX4 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s.
Terms
- a(0) =4a(1) =37a(2) =174a(3) =852a(4) =5396a(5) =29773a(6) =162828a(7) =945314a(8) =5347977a(9) =30133308a(10) =171973424a(11) =977160855a(12) =5545471514a(13) =31555267875a(14) =179438125871
External references
- oeis: A297745