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Search: id:A087309
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| A087309 |
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Least number that ends an arithmetic progression of n numbers with the same prime signature. |
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+0
7
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| 1, 3, 7, 23, 29, 157, 505, 1139, 1211, 2089, 5161, 5293, 6347, 10717, 14233, 28213, 31451, 72965, 119029, 121603, 124177, 611261, 632171, 2003171, 2012771
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Final terms of the arithmetic progressions described in A086786.
Main diagonal of A086786.
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LINKS
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Index entries for sequences related to primes in arithmetic progressions
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FORMULA
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a(n)=A087308(n)+(n-1)*A087310(n). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 19 2007
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CROSSREFS
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Cf. A086786, A087308, A087310, A114659, A114662, A114669.
Sequence in context: A144593 A057191 A090548 this_sequence A127781 A165580 A122094
Adjacent sequences: A087306 A087307 A087308 this_sequence A087310 A087311 A087312
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KEYWORD
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more,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 02 2003
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EXTENSIONS
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Edited and extended by David Wasserman (dwasserm(AT) earthlink.net), Jan 08 2006
Further edited by N. J. A. Sloane (njas(AT)research.att.com), Jun 30 2008 at the suggestion of R. J. Mathar.
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