Number of (n+1)X(4+1) 0..2 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise.
A235563
Number of (n+1)X(4+1) 0..2 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise.
Terms
- a(0) =17837a(1) =1383617a(2) =114840543a(3) =9226436673a(4) =682927935295
External references
- oeis: A235563