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Search: id:A128298
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| A128298 |
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a(n) = denominator of b(n): b(1)=1; b(n+1) = [b(1);b(2),...,b(n)]/b(n), where [...] is a continued fraction of rational terms. |
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+0
2
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| 1, 1, 1, 6, 35, 5772, 88530295, 13109586855583296, 641514040130247702993686238424885, 38794682422831176556784792608495170681619094988640304687341019712
(list; graph; listen)
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OFFSET
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1,4
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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EXAMPLE
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a(6) = the denominator of b(6). b(6) = (1 +1/(1 +1/(2 +1/(5/6 +35/74))))*35/74 = 4735/5772.
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MATHEMATICA
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a = {1}; Do[AppendTo[a, FromContinuedFraction[a]/a[[ -1]]], {10}]; Denominator[a] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Oct 24 2007
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CROSSREFS
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Cf. A128297.
Sequence in context: A051337 A152128 A115457 this_sequence A059059 A050112 A036125
Adjacent sequences: A128295 A128296 A128297 this_sequence A128299 A128300 A128301
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KEYWORD
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frac,nonn
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AUTHOR
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Leroy Quet Feb 25 2007
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Oct 24 2007
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