Number of (n+1) X (7+1) 0..3 arrays with the upper median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237973
Number of (n+1) X (7+1) 0..3 arrays with the upper median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =5540337a(1) =88114176a(2) =1103412332a(3) =24232087766a(4) =564910605674
External references
- oeis: A237973