Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.
A297455
Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.
Terms
- a(0) =21a(1) =384a(2) =3933a(3) =52714a(4) =693884a(5) =8800153a(6) =113851142a(7) =1469935404a(8) =18934230754a(9) =244239027815
External references
- oeis: A297455