3770481domain: NAppears in sequencesNumber of n X n binary arrays with each sum of a(1..i,1..j) no greater than i*j/2.at n=4A183403Number of nX5 binary arrays with each sum of a(1..i,1..j) no greater than i*j/2.at n=4A183406T(n,k)=Number of nXk binary arrays with each sum of a(1..i,1..j) no greater than i*j/2.at n=40A183407