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Search: id:A139058
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| A139058 |
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a(n) = numbers k for which (5+k!)/5 is prime. |
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+0
44
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| 7, 9, 11, 14, 19, 23, 45, 121, 131, 194, 735, 751
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Prime numbers of the form (5 + k!)/5 see A139059
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MATHEMATICA
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a = {}; Do[If[PrimeQ[(n! + 5)/5], AppendTo[a, n]], {n, 1, 751}]; a
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CROSSREFS
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Cf. A089085, A117141, A007749, A139056, A139058, A139059, A139060, A139061, A139061, A139062, A139063, A139064, A139065, A139066, A020458.
Sequence in context: A029612 A120165 A024828 this_sequence A107226 A029611 A053357
Adjacent sequences: A139055 A139056 A139057 this_sequence A139059 A139060 A139061
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KEYWORD
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nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Apr 07 2008
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