Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.
A297504
Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.
Terms
- a(0) =21a(1) =729a(2) =8803a(3) =191192a(4) =3624914a(5) =66289769a(6) =1272836591a(7) =23896899569a(8) =450529429259
External references
- oeis: A297504