A080122 Number of primes less than n*10^13.

346065536839, 675895909271, 1000121668853, 1320811971702, 1638923764567, 1955010428258, 2269432871304, 2582444113487, 2894232250783, 3204941750802, 3514687156436, 3823561506566, 4131641836725, 4438993433550, 4745670621117

Offset

1,1

Links

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

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)

Andrew R. Booker, The Nth Prime Page

Mathematica

Table[ PrimePi[ n*10^13 ], {n, 1, 9}]

Prog

(PARI) a(n)=primepi(10^13*n) \\ Charles R Greathouse IV, Apr 29 2015

Crossrefs

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Sequence in context: A340155 A172714 A080132 * A269417 A281963 A357687

Adjacent sequences: A080119 A080120 A080121 * A080123 A080124 A080125

Keyword

nonn

Author

Robert G. Wilson v and Jeff Burch, Jan 29 2003

Status

approved