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Search: id:A030431
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| 3, 13, 23, 43, 53, 73, 83, 103, 113, 163, 173, 193, 223, 233, 263, 283, 293, 313, 353, 373, 383, 433, 443, 463, 503, 523, 563, 593, 613, 643, 653, 673, 683, 733, 743, 773, 823, 853, 863, 883, 953, 983, 1013, 1033, 1063, 1093, 1103, 1123, 1153, 1163, 1193
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Also primes of form 5n+3.
Primes p such that arithmetic mean of divisors of p^4 is an integer. There are 2 such sequences of primes, this one and A030430. [From Ctibor O. Zizka (c.zizka(AT)email.cz), Oct 20 2009]
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LINKS
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A. Granville and G. Martin, Prime number races
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FORMULA
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a(n) = 10*A102338(n) + 3.
Union of A132233, A132235, {3}. [From Ray Chandler (rayjchandler(AT)sbcglobal.net), Apr 07 2009]
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MATHEMATICA
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Select[Prime@Range[200], Mod[ #, 10] == 3 &] (*Chandler*)
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CROSSREFS
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Cf. A045414, A049508, A102338.
Sequence in context: A018709 A121756 A147473 this_sequence A090146 A133313 A102010
Adjacent sequences: A030428 A030429 A030430 this_sequence A030432 A030433 A030434
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KEYWORD
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nonn
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AUTHOR
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Warut Roonguthai (warut822(AT)yahoo.com)
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 07 2006
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