T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
A235824
T(n,k)=Number of (n+1)X(k+1) 0..3 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) =256a(1) =2896a(2) =2896a(3) =29902a(4) =91067a(5) =29902a(6) =283672a(7) =2623192a(8) =2571976a(9) =283672a(10) =2573798a(11) =66311937a(12) =207321076a(13) =64246449a(14) =2573798a(15) =22515040a(16) =1570352593a(17) =14451129835a(18) =14397784435a(19) =1503158739a(20) =22515040a(21) =192101098a(22) =34846608905a(23) =941802350503
External references
- oeis: A235824