Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300545
Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =1568a(2) =117146a(3) =8514930a(4) =632777378a(5) =47042626155
External references
- oeis: A300545