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A066987
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Prod(i=2, n, sigma(i)/bigomega(i) ).
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1
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3, 12, 42, 252, 1512, 12096, 60480, 393120, 3538080, 42456960, 396264960, 5547709440, 66572513280, 798870159360, 6191243735040, 111442387230720, 1448751033999360, 28975020679987200, 405650289519820800
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=2,...,100
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PROG
| (PARI) { a=1; for (n=2, 100, a*=sigma(n)/bigomega(n); write("b066987.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Apr 15 2010]
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CROSSREFS
| Sequence in context: A065179 A048121 A191112 * A012873 A167477 A190051
Adjacent sequences: A066984 A066985 A066986 * A066988 A066989 A066990
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KEYWORD
| nonn
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AUTHOR
| Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 27 2002
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EXTENSIONS
| Definition correcter and OFFSET changed from 1,1 to 2,1 by Harry J. Smith (hjsmithh(AT)sbcglobal.net), Apr 15 2010
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