fixed a bug in expectedPrimeCount() formula
fixed a bug in expectedPrimeCount() formula

fredwang00/primesieve,anatoliyrazin/primesieve,ZahidDev/primesieve,ZahidDev/primesieve,kimwalisch/primesieve,tempbottle/primesieve,fredwang00/primesieve,tempbottle/primesieve,fredwang00/primesieve,kimwalisch/primesieve,anatoliyrazin/primesieve,kimwalisch/primesieve,tempbottle/primesieve,ZahidDev/primesieve,anatoliyrazin/primesieve