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Search: id:A036244
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| A036244 |
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Denominator of continued fraction given by C(n) = [ 1; 3, 5, 7, ...(2n-1)]. |
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+0
3
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| 1, 3, 16, 115, 1051, 11676, 152839, 2304261, 39325276, 749484505, 15778499881, 363654981768, 9107153044081, 246256787171955, 7150553981030776, 221913430199126011, 7330293750552189139, 256782194699525745876
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Denominators of convergents to coth(1)
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FORMULA
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a(n) = a(n-1)*(2*n-1) + a(n-2)
E.g.f.: sinh(1-(1-2*x)^(1/2))/(1-2*x)^(1/2). - Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 30 2004
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CROSSREFS
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Cf. A001040, A001053, A025164.
Numerators are sequence A025164.
Cf. A025164.
Sequence in context: A074523 A042437 A159606 this_sequence A011818 A036248 A111555
Adjacent sequences: A036241 A036242 A036243 this_sequence A036245 A036246 A036247
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KEYWORD
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nonn,easy,frac
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AUTHOR
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Jeff Burch (gburch(AT)erols.com)
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), May 15 2001
More terms from Benoit Cloitre (benoit7848c(AT)orange.fr), Dec 20 2002
More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 30 2004
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