535387328domain: NAppears in sequencesa(n) = (n*(n+1))^3.at n=28A060459Table T(n,k) read by upward antidiagonals. T(n,k) is the maximum value of Product_{i=1..n} Sum_{j=1..k} r[(i-1)*k+j] among all permutations r of {1..kn}.at n=30A333420