Revision History for A068589
(Underlined text is an addition;
strikethrough text is a deletion.)
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Showing entries 11-15
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#5 by Russ Cox at Fri Mar 30 18:38:54 EDT 2012
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| AUTHOR
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_Benoit Cloitre (benoit7848c(AT)orange.fr), _, Mar 27 2002
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Discussion
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Fri Mar 30
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| OEIS Server: https://oeis.org/edit/global/216
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#4 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008
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| KEYWORD
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easy,nonn,new
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| AUTHOR
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Benoit Cloitre (abmtbenoit7848c(AT)wanadooorange.fr), Mar 27 2002
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#3 by N. J. A. Sloane at Wed Sep 21 03:00:00 EDT 2005
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| KEYWORD
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easy,nonn,new
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| AUTHOR
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Benoit Cloitre (abcloitreabmt(AT)modulonetwanadoo.fr), Mar 27 2002
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#2 by N. J. A. Sloane at Tue Jul 19 03:00:00 EDT 2005
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| KEYWORD
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easy,nonn,new
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| AUTHOR
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Benoit Cloitre (abcloitre(AT)wanadoomodulonet.fr), Mar 27 2002
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#1 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003
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| NAME
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Denominator(sum(i=1,n,1/i^3))/denominator(sum(i=1,n,1/i)).
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| DATA
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1, 4, 36, 144, 3600, 1200, 58800, 235200, 6350400, 6350400, 768398400, 768398400, 129859329600, 129859329600, 129859329600, 519437318400, 150117385017600, 50039128339200, 18064125330451200, 18064125330451200, 54192375991353600
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| OFFSET
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1,2
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| FORMULA
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a(n)=A007409(n)/A002805(n)
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| KEYWORD
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easy,nonn
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| AUTHOR
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Benoit Cloitre (abcloitre(AT)wanadoo.fr), Mar 27 2002
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| STATUS
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approved
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