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Search: id:A129248
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| A129248 |
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a(n) = n-th prime of class 14- according to the Erdos-Selfridge classification. |
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+0
6
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| 377982107, 437391349, 716174549, 742922699, 1385934359, 1603768277, 1780127639, 1790436371, 1895437139, 1968261067, 2066951933, 2109424013, 2148523669, 2150787839, 2238778847, 2299583987, 2334899909, 2368121663
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OFFSET
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1,1
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COMMENT
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a[1..2] calculated using A081641[1..11]; a[3] <= 716174549.
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LINKS
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M. F. Hasler, Table of n, a(n) for n=1..339
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FORMULA
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{ a(n) } = { p = 2*m*A081641(k)+1 | k=1,2,...,oo and m=1,2,... such that p is prime and m has no factor of class > 13- }
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PROGRAM
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(PARI) A129248 = nextclassminus(A081641) /* cf. A081640 */
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CROSSREFS
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Cf. A056637, A081640, A081641, A129249, A129250.
Sequence in context: A017603 A112445 A101640 this_sequence A144768 A057071 A074152
Adjacent sequences: A129245 A129246 A129247 this_sequence A129249 A129250 A129251
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KEYWORD
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nonn
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AUTHOR
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M. F. Hasler (Maximilian.Hasler(AT)gmail.com), Apr 05 2007, Apr 21 2007
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