A038818 Number of primes less than n*10^9.

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

Robert G. Wilson v, Table of n, a(n) for n = 1..10000

Andrew R. Booker, The Nth Prime Page

Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [See local copy in A007053]

Tomás Oliveira e Silva, Tables of values of pi(x) and of pi2(x)

Mathematica

Table[ PrimePi[ n*10^9 ], {n, 1, 22}]

Prog

(PARI) a(n)=primepi(10^9*n) \\ Charles R Greathouse IV, Apr 29 2015

Crossrefs

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Sequence in context: A080796 A068242 A038829 * A251497 A015392 A211237

Adjacent sequences: A038815 A038816 A038817 * A038819 A038820 A038821

Keyword

nonn

Author

Jeff Burch

Extensions

Edited and extended by Robert G. Wilson v, Jan 29 2003

Status

approved