Number of (n+1)X(2+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.
A236517
Number of (n+1)X(2+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) =52a(1) =264a(2) =1256a(3) =5670a(4) =25023a(5) =108214a(6) =462970a(7) =1962897a(8) =8278491a(9) =34768983a(10) =145652451a(11) =608974557a(12) =2542990472a(13) =10609555831a(14) =44237987228a(15) =184378860260a(16) =768258530698
External references
- oeis: A236517