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Search: id:A128300
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| A128300 |
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a(n) = denominator of b(n): b(1)=1; b(n+1) = [b(1);b(2),...,b(n),1], where [...] is a continued fraction of rational terms. |
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+0
2
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| 1, 1, 3, 17, 553, 586897, 659232805921, 832815851066489242864705, 1328480976128962358175251908323023432381302392961, 13523945381393603685542438490772048219795234689260828252220694689196771883923315\ 7787733773571369
(list; graph; listen)
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OFFSET
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1,3
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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(5) = the denominator of b(5). b(5) = 1 +1/(2 +1/(4/3 +1/(24/17 +1))) = 768/553.
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MATHEMATICA
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a = {1}; Do[AppendTo[a, FromContinuedFraction[Join[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. A128299.
Sequence in context: A144033 A098138 A009719 this_sequence A001601 A061119 A049985
Adjacent sequences: A128297 A128298 A128299 this_sequence A128301 A128302 A128303
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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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