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Search: id:A062551
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| 7, 19, 73, 2161, 15121, 1088641, 10886401, 18681062401, 77556050216654929920001, 46533630129992957952000001, 789392510801080590501654036480000001
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,15
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MATHEMATICA
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lst={}; Do[p=3*n!+1; If[PrimeQ[p], AppendTo[lst, p]], {n, 0, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 28 2009]
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PROGRAM
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(PARI) for(n=1, 40, if(isprime(3*n!+1), print(3*n!+1)))
(PARI) { n=0; for (m=0, 10^5, if(isprime(a=3*m! + 1), write("b062551.txt", n++, " ", a); if (n==15, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 08 2009]
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CROSSREFS
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Sequence in context: A002533 A111011 A144723 this_sequence A155390 A088988 A109879
Adjacent sequences: A062548 A062549 A062550 this_sequence A062552 A062553 A062554
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KEYWORD
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nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Jul 10 2001
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