Number of (n+1)X(5+1) 0..1 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
A236520
Number of (n+1)X(5+1) 0..1 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
Terms
- a(0) =1392a(1) =25023a(2) =421516a(3) =6591144a(4) =99655626a(5) =1448355717a(6) =20627269098a(7) =287546676233
External references
- oeis: A236520