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Search: id:A034524
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| 2, 12, 122, 1332, 14642, 161052, 1771562, 19487172, 214358882, 2357947692, 25937424602, 285311670612, 3138428376722, 34522712143932, 379749833583242, 4177248169415652, 45949729863572162, 505447028499293772
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OFFSET
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0,1
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COMMENT
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Numbers n for which the expression 11^n/(n-1) is an integer. - Paolo P. Lava (ppl(AT)spl.at), May 29 2006
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FORMULA
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G.f.: 1/(1-x)+1/(1-11*x). E.g.f.: e^x+e^(11*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 02 2009]
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PROGRAM
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(Other) sage: [sigma(11, n)for n in xrange(0, 18)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 04 2009]
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CROSSREFS
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Sequence in context: A062080 A165300 A028359 this_sequence A051782 A048173 A058349
Adjacent sequences: A034521 A034522 A034523 this_sequence A034525 A034526 A034527
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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