Number of nX7 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
A301607
Number of nX7 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =21a(2) =55a(3) =755a(4) =6393a(5) =60841a(6) =591585a(7) =5880829a(8) =58383932a(9) =585233819a(10) =5854941545a(11) =58759934077a(12) =589360075403
External references
- oeis: A301607