A080125 -id:A080125 - cp's OEIS frontend

A038820 Number of primes less than n*10^11.

4118054813, 8007105059, 11818439135, 15581005657, 19308136142, 23007501786, 26684074310, 30341383527, 33981987586, 37607912018, 41220703418, 44821651132, 48411812843, 51992079337, 55563209929, 59125832286

Offset: 1

Jeff Burch

nonn

Robert G. Wilson v, Table of n, a(n) for n = 1..10000
Tomás Oliveira e Silva, Tables of values of pi(x) and of pi2(x)
Andrew R. Booker, The Nth Prime Page

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Mathematica
```
Table[ PrimePi[ n*10^11 ], {n, 1, 18}]
```

a(n)=primepi(10^11*n) \\ Charles R Greathouse IV, Apr 29 2015

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

A038821 Number of primes less than n*10^12.

Original entry on oeis.org

37607912018, 73301896139, 108340298703, 142966208126, 177291661649, 211381427039, 245277688804, 279010070811, 312600354108, 346065536839, 379418886337, 412671294782, 445831610611, 478907544860, 511905471132

Offset: 1

Jeff Burch

nonn

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

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Mathematica
```
Table[ PrimePi[ n*10^12 ], {n, 1, 15}]
```

a(n)=primepi(10^12*n) \\ Charles R Greathouse IV, Apr 29 2015

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

A080123 Number of primes less than n*10^14.

Original entry on oeis.org

3204941750802, 6270424651315, 9287441600280, 12273824155491, 15237833654620, 18184255291570, 21116208911023, 24035890368161, 26944926466221, 29844570422669, 32735816605908, 35619471693548

Offset: 1

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

nonn

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)

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080124, A080125, A080126, A080127, A080128, A080129.

a(n)=primepi(10^14*n) \\ Charles R Greathouse IV, Apr 29 2015

A080124 Number of primes less than n*10^15.

Original entry on oeis.org

29844570422669, 58478215681891, 86688602810119, 114630988904000, 142377417196364, 169969662554551, 197434994078331, 224792606318600, 252056733453928, 279238341033925, 306346140642929, 333387204489157

Offset: 1

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

nonn

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)

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080125, A080126, A080127, A080128, A080129.

a(n)=primepi(10^15*n) \\ Charles R Greathouse IV, Apr 29 2015

A080126 Number of primes less than n*10^17.

Original entry on oeis.org

2623557157654233, 5153329362645908, 7650011911220803, 10125681208311322, 12585956566571620, 15034102021263820, 17472251499627256, 19901908567967065, 22324189231374849, 24739954287740860

Offset: 1

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

nonn

Robert G. Wilson v, Table of n, a(n) for n = 1..1000
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)

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080127, A080128, A080129.

a(n)=primepi(10^17*n) \\ Charles R Greathouse IV, Apr 29 2015

A080127 Number of primes less than n*10^18.

Original entry on oeis.org

24739954287740860, 48645161281738535, 72254704797687083, 95676260903887607, 118959989688273472, 142135049412622144, 165220513980969424, 188229829247429504, 211172979243258278

Offset: 1

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

nonn

Robert G. Wilson v, Table of n, a(n) for n = 1..100
Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [See local copy in A007053]

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080126, A080128, A080129.

a(n)=primepi(10^18*n) \\ Charles R Greathouse IV, Apr 29 2015

A080128 Number of primes less than n*10^19.

Original entry on oeis.org

234057667276344607, 460637655126005490, 684559920583084690, 906790515105576571, 1127779923790184543, 1347790196060095447, 1566992840325479804, 1785508810123564582, 2003427950419417330

Offset: 1

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

nonn

Robert G. Wilson v, Table of n, a(n) for n = 1..100
Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [See local copy in A007053]

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080129.

a(n)=primepi(10^19*n) \\ Charles R Greathouse IV, Apr 29 2015

A080129 Number of primes less than n*10^20.

Original entry on oeis.org

2220819602560918840, 4374267703076959271, 6503696293016202398, 8617821096373621600, 10720710117789005897, 12814731195053369962, 14901434779964228982, 16981914723713251575, 19056983802675654255, 21127269486018731928

Offset: 1

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

Chai Wah Wu, Table of n, a(n) for n = 1..47
Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [See local copy in A007053]

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A116356.

a(n)=primepi(10^20*n) \\ Charles R Greathouse IV, Apr 29 2015

a(7)-a(10) from Robert G. Wilson v, Feb 04 2006

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

Original entry on oeis.org

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

Offset: 1

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

nonn

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

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

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

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

A116356 Number of primes less than n*10^21.

Original entry on oeis.org

21127269486018731928, 41644391885053857293, 61943374158983520871, 82103246362658124007, 102160925813497229402, 122137912741771709423, 142048291427909819758, 161902001837504830333, 181706431926947074426, 201467286689315906290

Offset: 1

Robert G. Wilson v, Feb 04 2006

nonn

Chai Wah Wu, Table of n, a(n) for n = 1..53
Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [See local copy in A007053]

Cf. A000720, A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819.

Cf. A038820, A038821, A038822, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

cp's OEIS Frontend

A038820 Number of primes less than n*10^11.

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Mathematica

PARI

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A038821 Number of primes less than n*10^12.

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Mathematica

PARI

Extensions

A080123 Number of primes less than n*10^14.

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PARI

A080124 Number of primes less than n*10^15.

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A080126 Number of primes less than n*10^17.

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A080127 Number of primes less than n*10^18.

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A080128 Number of primes less than n*10^19.

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A080129 Number of primes less than n*10^20.

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Programs

PARI

Extensions

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

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Author

Keywords

Links

Crossrefs

Programs

Mathematica

PARI

A116356 Number of primes less than n*10^21.