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Search: id:A003627
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| A003627 |
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Primes of form 3n-1.
(Formerly M1388)
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+0
25
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| 2, 5, 11, 17, 23, 29, 41, 47, 53, 59, 71, 83, 89, 101, 107, 113, 131, 137, 149, 167, 173, 179, 191, 197, 227, 233, 239, 251, 257, 263, 269, 281, 293, 311, 317, 347, 353, 359, 383, 389, 401, 419, 431, 443, 449, 461, 467, 479, 491, 503, 509, 521, 557, 563, 569, 587
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Primes p dividing sum(k=0,p,C(2k,k)) -1 = A006134(p)-1 - Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 08 2003
A039701(A049084(a(n))) = 2; A134323(A049084(a(n))) = -1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 21 2007
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REFERENCES
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M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 870.
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, December 1972 [alternative scanned copy].
A. Granville and G. Martin, Prime number races
Eric Weisstein's World of Mathematics, Eisenstein Prime
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MAPLE
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t1 := {}; for n from 0 to 500 do if isprime(3*n+2) then t1 := {op(t1), 3*n+2}; fi; od: A003627 := convert(t1, list);
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CROSSREFS
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Primes of form 3n+1 give A002476.
These are the primes arising in A024893, A087370, A088879, A091177 gives prime index.
Adjacent sequences: A003624 A003625 A003626 this_sequence A003628 A003629 A003630
Sequence in context: A136244 A118754 A067775 this_sequence A103203 A105875 A031368
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KEYWORD
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nonn,easy
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AUTHOR
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njas and Mira Bernstein
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