Number of (n+1)X(5+1) 0..2 arrays with the upper median plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237564
Number of (n+1)X(5+1) 0..2 arrays with the upper median plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =19900a(1) =175768a(2) =1668300a(3) =16418704a(4) =159014170a(5) =1518590620a(6) =14891233160a(7) =142803584684
External references
- oeis: A237564