sorted input         n = 1000    height = 999      average probes per insert = 499.50
shuffled input       n = 1000    height = 21       average probes per insert = 10.55
   lg(n) = 9.97

sorted input         n = 4000    height = 3999     average probes per insert = 1999.50
shuffled input       n = 4000    height = 25       average probes per insert = 13.48
   lg(n) = 11.97

sorted input         n = 16000   height = 15999    average probes per insert = 7999.50
shuffled input       n = 16000   height = 32       average probes per insert = 16.03
   lg(n) = 13.97
