Number of nX4 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
A296631
Number of nX4 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
Terms
- a(0) =8a(1) =47a(2) =260a(3) =1444a(4) =8042a(5) =44783a(6) =249329a(7) =1388229a(8) =7729475a(9) =43036555a(10) =239621114a(11) =1334174859a(12) =7428487720a(13) =41360717708a(14) =230290341396
External references
- oeis: A296631