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A038818
Number of primes less than n*10^9.
21
50847534, 98222287, 144449537, 189961812, 234954223, 279545368, 323804352, 367783654, 411523195, 455052511, 498388617, 541555851, 584570200, 627440336, 670180516, 712799821, 755305935, 797703398, 840000027, 882206716, 924324489
OFFSET
1,1
LINKS
Andrew R. Booker, The Nth Prime Page
MATHEMATICA
Table[ PrimePi[ n*10^9 ], {n, 1, 22}]
PROG
(PARI) a(n)=primepi(10^9*n) \\ Charles R Greathouse IV, Apr 29 2015
KEYWORD
nonn
AUTHOR
EXTENSIONS
Edited and extended by Robert G. Wilson v, Jan 29 2003
STATUS
approved