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Search: id:A104494
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| A104494 |
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Positive integers n such that n^17 + 1 is semiprime (A001358). |
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+0
4
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| 2, 58, 66, 166, 268, 270, 408, 600, 672, 808, 822, 970, 1050
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OFFSET
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1,1
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FORMULA
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a(n)^17 + 1 is semiprime (A001358).
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EXAMPLE
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2^17 + 1 = 131073 = 3 * 43691,
58^17 + 1 = 951208868148684143308060622849 = 59 * 16122184205909900734034925811,
66^17 + 1 = 8555529718761317069203003539457 = 67 * 127694473414348015958253784171,
1050^17 + 1 = 2292018317801032401637344360351562500000000000000001 = 1051 * 2180797638250268698037435166842590390104662226451.
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CROSSREFS
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Cf. A000040, A001358, A006313, A103854, A104238, A104335, A105041, A105066, A105078, A105122, A105142, A105237, A104479.
Sequence in context: A024237 A030263 A090743 this_sequence A121931 A156507 A115610
Adjacent sequences: A104491 A104492 A104493 this_sequence A104495 A104496 A104497
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KEYWORD
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easy,nonn
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AUTHOR
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Jonathan Vos Post (jvospost3(AT)gmail.com), Apr 19 2005
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