Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303417
Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =128a(2) =1985a(3) =30897a(4) =480960a(5) =7486369a(6) =116529645a(7) =1813851698a(8) =28233652317a(9) =439473157219
External references
- oeis: A303417