

A007351


Where prime race 4m1 vs. 4m+1 is tied.
(Formerly M1507)


14



2, 5, 17, 41, 461, 26833, 26849, 26863, 26881, 26893, 26921, 616769, 616793, 616829, 616843, 616871, 617027, 617257, 617363, 617387, 617411, 617447, 617467, 617473, 617509, 617531, 617579, 617681, 617707, 617719, 618437, 618521, 618593, 618637
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OFFSET

1,1


COMMENTS

n such that the number of primes <= n of the form 4m1 is equal to the number of primes <= n of the form 4m+1.


REFERENCES

A. Granville and G. Martin, Prime number races, Amer. Math. Monthly, 113 (No. 1, 2006), 133.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).


LINKS

T. D. Noe, Table of n, a(n) for n=1..1000
R. K. Guy, The strong law of small numbers. Amer. Math. Monthly 95 (1988), no. 8, 697712. [Annotated scanned copy]


CROSSREFS

Cf. A007350, A038691.
Cf. A156749 Sequence showing Chebyshev bias in prime races (mod 4). [From Daniel Forgues, Mar 26 2009]
Sequence in context: A080898 A081763 A013918 * A076076 A136194 A056304
Adjacent sequences: A007348 A007349 A007350 * A007352 A007353 A007354


KEYWORD

nonn,easy


AUTHOR

N. J. A. Sloane, Mira Bernstein, Robert G. Wilson v


EXTENSIONS

Corrected and extended by Enoch Haga, Feb 24 2004


STATUS

approved



