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A112640
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Odd abundant numbers divisible neither by 5 nor by 7.
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6
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28683369, 36165987, 38660193, 86050107, 108497961, 115980579, 131339637, 138428433, 140397543, 153393669, 160876287, 258150321, 277272567, 296394813, 315517059, 325493883, 347941737, 353761551, 372883797, 373715199, 392006043
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OFFSET
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1,1
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COMMENTS
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Subsequence of A064001 which itself is subsequence of A005231. All 500 terms in b-file are divisible by 99. Cf. also A047802. [Zak Seidov, Mar 30 2011]
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LINKS
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Zak Seidov, Table of n, a(n) for n = 1..500
C. Rivera, Puzzle 329. Odd abundant numbers not divided by 2 or 3.
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MATHEMATICA
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Do[If[Mod[n, 5]>0&&Mod[n, 7]>0&&DivisorSigma[1, n]>2n, Print[n]], {n, 28683369, 6*10^9, 2}] (* Zak Seidov, Mar 30 2011 *)
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CROSSREFS
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Cf. A110585, A064001.
Sequence in context: A205933 A101639 A213914 * A200217 A104828 A198172
Adjacent sequences: A112637 A112638 A112639 * A112641 A112642 A112643
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Sep 15 2005
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EXTENSIONS
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Extended by Ray Chandler, Sep 19 2005
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STATUS
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approved
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