Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.
A297550
Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.
Terms
- a(0) =1a(1) =69a(2) =8057a(3) =67215a(4) =754342a(5) =45293985a(6) =1610981344a(7) =33425081735a(8) =874581570077
External references
- oeis: A297550