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Search: id:A028505
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| A028505 |
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Number of primes <= 100*n. |
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+0
23
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| 25, 46, 62, 78, 95, 109, 125, 139, 154, 168, 184, 196, 211, 222, 239, 251, 266, 278, 290, 303, 317, 327, 342, 357, 367, 378, 393, 407, 419, 430, 442, 452, 463, 478, 489, 503, 516, 528, 539, 550, 565, 574, 590, 599, 610, 622, 634, 646, 654, 669, 681, 692, 702
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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Fred W. Helenius (fredh(AT)ix.netcom.com), posting to newsgroup rec.puzzles, Dec. 1997.
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LINKS
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Robert G. Wilson v, Table of n, a(n) for n = 0..10000
J. Betrema, Table et repartition des nombres premiers inferieurs a 10000
A. Booker, The Nth Prime Page
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)
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MATHEMATICA
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Table[ PrimePi[ n*100 ], {n, 55}] (* Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 29 2003 *)
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PROGRAM
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(Macsyma) for n:1 through 50 do print(prime_pi(100*n));
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CROSSREFS
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Cf. A038801, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820.
Cf. A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.
Sequence in context: A015911 A054520 A038811 this_sequence A154082 A143278 A106632
Adjacent sequences: A028502 A028503 A028504 this_sequence A028506 A028507 A028508
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KEYWORD
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nonn
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AUTHOR
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Chris Cole (chris(AT)questrel.com)
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