Number of (n+1)X(1+1) 0..3 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal.
A237204
Number of (n+1)X(1+1) 0..3 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =1160a(2) =5130a(3) =24478a(4) =117800a(5) =581660a(6) =2899672a(7) =14622828a(8) =74221442a(9) =379011938a(10) =1943105940a(11) =9995615812a(12) =51540572228a(13) =266280874056
External references
- oeis: A237204