cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-10 of 11 results. Next

A038823 Number of primes between n*1000 and (n+1)*1000.

Original entry on oeis.org

168, 135, 127, 120, 119, 114, 117, 107, 110, 112, 106, 103, 109, 105, 102, 108, 98, 104, 94, 104, 98, 104, 100, 104, 94, 98, 101, 94, 98, 92, 95, 92, 106, 100, 94, 92, 99, 94, 90, 96, 88, 101, 102, 85, 96, 86, 90, 95, 89, 98, 89, 97, 89, 92, 90, 93, 99, 91, 90, 94, 88, 87
Offset: 0

Views

Author

Jeff Burch

Keywords

References

  • D. N. Lehmer, List of Prime Numbers from 1 to 10,006,721, p. 2, Carnegie Institute of Washington, Washington D.C., 1914
  • George P. Loweke, The Lore of Prime Numbers. New York: Vantage Press (1982) p. 91.
  • D. D. Spencer, Key Dates in Number Theory History, pp. 98, Camelot Pub. Co., FL 1995.
  • J. V. Uspensky and M. A. Heaslet, Elementary Number Theory, McGraw-Hill, NY, 1939, p. 124.

Links

Crossrefs

Cf. A038824, A038825, A038826, A038827, A038828, A038829, A038830, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[PrimePi[(n + 1) * 10^3] - PrimePi[n * 10^3], {n, 0, 99}] (* Julien Peter Benney (jpbenney(AT)gmail.com), Feb 18 2008 *)

Extensions

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

A038824 Number of primes between n*10000 and (n+1)*10000.

Original entry on oeis.org

1229, 1033, 983, 958, 930, 924, 878, 902, 876, 879, 861, 848, 858, 851, 838, 835, 814, 845, 828, 814, 823, 811, 819, 784, 823, 793, 805, 790, 792, 773, 803, 808, 796, 778, 795, 780, 765, 778, 767, 793, 754, 776, 772, 779, 765, 752, 765, 782, 761, 772, 753
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038825, A038826, A038827, A038828, A038829, A038830, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[PrimePi[(n+1)*10^4] - PrimePi[n*10^4], {n, 0, 50}]
Differences[PrimePi[10000*Range[0,51]]] (* Harvey P. Dale, Oct 21 2024 *)

Extensions

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

A038825 Number of primes between n*100000 and (n+1)*100000.

Original entry on oeis.org

9592, 8392, 8013, 7863, 7678, 7560, 7445, 7408, 7323, 7224, 7216, 7224, 7083, 7105, 7029, 6972, 7014, 6931, 6957, 6904, 6872, 6857, 6849, 6791, 6770, 6808, 6765, 6717, 6747, 6707, 6676, 6717, 6691, 6639, 6611, 6576, 6671, 6590, 6624, 6535, 6628, 6540
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038826, A038827, A038828, A038829, A038830, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[PrimePi[(n+1)*10^5] - PrimePi[n*10^5], {n, 0, 41}]
#[[2]]-#[[1]]&/@Partition[PrimePi[Range[0,50]10^5],2,1] (* Harvey P. Dale, Mar 23 2017 *)

Extensions

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

A038826 Number of primes between n*10^6 and (n+1)*10^6.

Original entry on oeis.org

78498, 70435, 67883, 66330, 65367, 64336, 63799, 63129, 62712, 62090, 61938, 61543, 61192, 60825, 60627, 60426, 60184, 60053, 59683, 59557, 59336, 59318, 58960, 58901, 58805, 58600, 58538, 58365, 58246, 58183, 58120, 57836, 57852
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038825, A038827, A038828, A038829, A038830, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[PrimePi[(n+1)*10^6] - PrimePi[n*10^6], {n, 0, 32}]

Extensions

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

A038827 Number of primes between n*10^7 and (n+1)*10^7.

Original entry on oeis.org

664579, 606028, 587252, 575795, 567480, 560981, 555949, 551318, 547572, 544501, 541854, 538339, 536539, 534012, 532197, 530062, 528625, 527302, 525088, 523464, 522689, 520914, 520033, 518971, 517774, 516542, 515524, 514685, 513594, 512662
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038825, A038826, A038828, A038829, A038830, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[ PrimePi[ (n + 1)*10^7 ] - PrimePi[ n*10^7 ], {n, 0, 40} ]

Extensions

More terms from Robert G. Wilson v, Aug 27 2001

A038828 Number of primes between n*10^8 and (n+1)*10^8.

Original entry on oeis.org

5761455, 5317482, 5173388, 5084001, 5019541, 4968836, 4928228, 4893248, 4863036, 4838319, 4814936, 4792235, 4773628, 4757140, 4741055, 4725305, 4711186, 4699403, 4685506, 4674359, 4664239, 4653596, 4644818, 4633507, 4624924, 4618796, 4608025, 4600066, 4593753
Offset: 0

Views

Author

Jeff Burch

Keywords

Comments

Because the density of primes generally decreases as the range increases, the terms of the sequence generally are in decreasing order. - Harvey P. Dale, May 10 2025

Links

Crossrefs

Cf. A038823, A038824, A038825, A038826, A038827, A038829, A038830, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[ PrimePi[(n+1)*10^8] - PrimePi[n*10^8], {n, 0, 23}]
Differences[PrimePi[10^8 Range[0,30]]] (* Harvey P. Dale, May 10 2025 *)

Extensions

Edited and extended by Robert G. Wilson v, Jan 29 2003
More terms from Jon E. Schoenfield, Mar 21 2021

A038830 Number of primes between n*10^10 and (n+1)*10^10.

Original entry on oeis.org

455052511, 427154205, 417799210, 411949507, 407699145, 404383577, 401661384, 399359707, 397369745, 395625822, 394050419, 392654167, 391378851, 390187908, 389111798, 388095981, 387156696, 386287527, 385446999, 384679900, 383929532, 383230773, 382562467, 381941653
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038825, A038826, A038827, A038828, A038829, A038831, A038832, A080132.

Programs

  • Mathematica
    Table[ PrimePi[(n+1)*10^10] - PrimePi[n*10^10], {n, 0, 20}]

Extensions

Edited and extended by Robert G. Wilson v, Jan 29 2003
a(21)-a(23) from Amiram Eldar, Jun 14 2024

A038831 Number of primes between n*10^11 and (n+1)*10^11.

Original entry on oeis.org

4118054813, 3889050246, 3811334076, 3762566522, 3727130485, 3699365644, 3676572524, 3657309217, 3640604059, 3625924432, 3612791400, 3600947714, 3590161711, 3580266494, 3571130592, 3562622357, 3554715520, 3547310538, 3540307017, 3533730778, 3527508038, 3521536373
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038825, A038826, A038827, A038828, A038829, A038830, A038832, A080132.

Programs

  • Mathematica
    Table[ PrimePi[(n+1)*10^11] - PrimePi[n*10^11], {n, 0, 17}]

Extensions

Edited and extended by Robert G. Wilson v, Jan 29 2003
a(18)-a(21) from Amiram Eldar, Jun 14 2024

A038832 Number of primes between n*10^12 and (n+1)*10^12.

Original entry on oeis.org

37607912018, 35693984121, 35038402564, 34625909423, 34325453523, 34089765390, 33896261765, 33732382007, 33590283297, 33465182731, 33353349498, 33252408445, 33160315829, 33075934249, 32997926272, 32925345549, 32857801337, 32794327530, 32734665500, 32678298223
Offset: 0

Views

Author

Jeff Burch

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038825, A038826, A038827, A038828, A038829, A038830, A038831, A080132.

Programs

  • Mathematica
    Table[ PrimePi[(n+1)*10^12] - PrimePi[n*10^12], {n, 0, 17}]

Extensions

Edited, corrected and extended by Robert G. Wilson v, Jan 29 2003
a(15)-a(19) from Amiram Eldar, Jun 14 2024

A080132 Number of primes between n*10^13 and (n+1)*10^13.

Original entry on oeis.org

346065536839, 329830372432, 324225759582, 320690302849, 318111792865, 316086663691, 314422443046, 313011242183, 311788137296, 310709500019, 309745405634, 308874350130, 308080330159, 307351596825, 306677187567, 306051434210, 305466718919, 304918341204, 304402227011
Offset: 0

Views

Author

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

Keywords

Links

Crossrefs

Cf. A038823, A038824, A038825, A038826, A038827, A038828, A038829, A038830, A038831, A038832.

Programs

  • Mathematica
    Table[ PrimePi[(n+1)*10^13] - PrimePi[n*10^13], {n, 0, 9}]

Extensions

a(8)-a(9) added using Mathematica, by David Baugh, Oct 06 2011
More terms from Chai Wah Wu, Mar 25 2021
Showing 1-10 of 11 results. Next

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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