Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1s.
A296540
Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1s.
Terms
- a(0) =1a(1) =45a(2) =654a(3) =5601a(4) =53995a(5) =560942a(6) =5705431a(7) =57470370a(8) =581613058a(9) =5896361722a(10) =59744304510a(11) =605287549399
External references
- oeis: A296540