1497764

Appears in sequences

• Number of n X n binary arrays with each sum of a(1..i,1..j) no greater than i*j/2 and rows and columns in nondecreasing order.at n=5A183408
• T(n,k)=Number of nXk binary arrays with each sum of a(1..i,1..j) no greater than i*j/2 and rows and columns in nondecreasing order.at n=60A183413