Number of (4+1) X (n+1) 0..2 arrays with the difference of the upper and lower median value of each 2 X 2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
A235787
Number of (4+1) X (n+1) 0..2 arrays with the difference of the upper and lower median value of each 2 X 2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
Terms
- a(0) =17837a(1) =924323a(2) =41559689a(3) =1647458581a(4) =60893670493
External references
- oeis: A235787