Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal.
A237309
Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =1352a(2) =7398a(3) =42474a(4) =246644a(5) =1457838a(6) =8652288a(7) =51729960a(8) =309766574a(9) =1861078542a(10) =11188735904a(11) =67373917686a(12) =405827135812
External references
- oeis: A237309