Revision History for A247033
(Underlined text is an addition;
strikethrough text is a deletion.)
Showing entries 1-10
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#13 by Bruno Berselli at Tue Oct 07 16:51:27 EDT 2014
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#12 by R. J. Mathar at Tue Oct 07 15:37:03 EDT 2014
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#11 by Juri-Stepan Gerasimov at Fri Sep 12 02:45:28 EDT 2014
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#10 by Juri-Stepan Gerasimov at Fri Sep 12 02:45:23 EDT 2014
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| COMMENTS
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Subsequence of A246445.
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| STATUS
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proposed
editing
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#9 by Juri-Stepan Gerasimov at Fri Sep 12 02:42:59 EDT 2014
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#8 by Juri-Stepan Gerasimov at Fri Sep 12 02:42:51 EDT 2014
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| COMMENTS
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Generated by k: 1, 2, 3, 5, 6, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 66, 67, ...
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| CROSSREFS
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Cf. A000040, A005935, A064535 (numbers of thewith form (2^k - 2)/k), A122780 (nonprimes k). Subsequence ofin a(n)), A246445., A247307 (with form (4^k - 4)/k).
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proposed
editing
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#7 by Juri-Stepan Gerasimov at Thu Sep 11 15:23:44 EDT 2014
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#6 by Juri-Stepan Gerasimov at Thu Sep 11 15:23:15 EDT 2014
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| NAME
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Numbers of the form (3^nk - 3)/nk.
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| COMMENTS
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Generated by nk: 1, 2, 3, 5, 6, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, ...
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| EXAMPLE
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121 is in this sequence because (3^nk - 3)/nk = (3^6 - 3)/6 = 121.
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| CROSSREFS
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Cf. A064535 (numbers of the form (2^nk - 2)/nk). Subsequence of A246445.
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| STATUS
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proposed
editing
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#5 by Juri-Stepan Gerasimov at Thu Sep 11 14:58:42 EDT 2014
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#4 by Juri-Stepan Gerasimov at Thu Sep 11 14:58:35 EDT 2014
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| CROSSREFS
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Cf. A064535 (numbers of the form (2^n - 2)/n). Subsequence of A246445.
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