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

 

Logo

Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.

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 September 20 15:09 EDT 2014. Contains 247015 sequences.