Number of primes less than n*10^9.

Terms

a(0) =50847534a(1) =98222287a(2) =144449537a(3) =189961812a(4) =234954223a(5) =279545368a(6) =323804352a(7) =367783654a(8) =411523195a(9) =455052511a(10) =498388617a(11) =541555851a(12) =584570200a(13) =627440336a(14) =670180516a(15) =712799821a(16) =755305935a(17) =797703398a(18) =840000027a(19) =882206716a(20) =924324489