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Search: id:A105421
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| A105421 |
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Numbers n such that prime(n + 1) == 7 (mod n). |
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+0
1
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| 8, 30, 31, 33, 68, 72, 180, 1052, 6471, 40083, 40087, 40090, 40113, 40120
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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bb={}; Do[If[7==Mod[Prime[n+1], n], bb=Append[bb, n]], {n, 1, 99999}]; bb
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CROSSREFS
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Cf. A105286, A105287, A105288, A105290, A105329.
Sequence in context: A088131 A072264 A110527 this_sequence A071931 A074670 A092277
Adjacent sequences: A105418 A105419 A105420 this_sequence A105422 A105423 A105424
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), May 02 2005
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