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A030431
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Primes of form 10n+3.
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14
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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; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| 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
| Michael B. Porter, Table of n, a(n) for n=0..100000
A. Granville and G. Martin, Prime number races
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FORMULA
| 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
| Select[Prime@Range[200], Mod[ #, 10] == 3 &] (*Chandler*)
Select[10Range[0, 150]+3, PrimeQ] (* From Harvey P. Dale, Apr 06 2011 *)
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CROSSREFS
| Cf. A045414, A049508, A102338.
Sequence in context: A121756 A178825 A147473 * A090146 A133313 A102010
Adjacent sequences: A030428 A030429 A030430 * A030432 A030433 A030434
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KEYWORD
| nonn
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AUTHOR
| Warut Roonguthai (warut822(AT)yahoo.com)
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EXTENSIONS
| Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 07 2006
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