login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A080122 Number of primes less than n*10^13. 20
346065536839, 675895909271, 1000121668853, 1320811971702, 1638923764567, 1955010428258, 2269432871304, 2582444113487, 2894232250783, 3204941750802, 3514687156436, 3823561506566, 4131641836725, 4438993433550, 4745670621117 (list; graph; refs; listen; history; text; internal format)
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

Tomas 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}]

CROSSREFS

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819.

Cf. A038820, A038821, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Sequence in context: A186911 A172714 A080132 * A082411 A113952 A218865

Adjacent sequences:  A080119 A080120 A080121 * A080123 A080124 A080125

KEYWORD

nonn

AUTHOR

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

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified December 18 10:24 EST 2014. Contains 252138 sequences.