k=1: theta*=0.536 at b=60 (log2 N=55.0, depth p/log2Y=1.24)
k=2: theta*=0.245 at b=101 (log2 N=118.8, depth p/log2Y=2.05)
k=3: theta*=0.150 at b=146 (log2 N=189.7, depth p/log2Y=2.93)
k=4: theta*=0.107 at b=193 (log2 N=263.7, depth p/log2Y=3.83)
k=6: theta*=0.067 at b=284 (log2 N=407.5, depth p/log2Y=5.49)
k=8: theta*=0.050 at b=368 (log2 N=540.2, depth p/log2Y=6.95)
