Number of nX6 0..1 arrays with every element equal to 1, 2 or 4 horizontally or vertically adjacent elements, with upper left element zero.
A301667
Number of nX6 0..1 arrays with every element equal to 1, 2 or 4 horizontally or vertically adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =162a(2) =1498a(3) =14394a(4) =146841a(5) =1537496a(6) =15498505a(7) =159497778a(8) =1631501428a(9) =16710326446a(10) =171088097185
External references
- oeis: A301667