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A059248
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Numerator of 1/F1 + 1/F2 + 1/F3 + ... + 1/Fn where Fn is the n-th Fibonacci number (A000045).
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3
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1, 2, 5, 17, 91, 379, 5047, 35849, 614893, 6800951, 607326679, 3651532639, 851897554247, 24724573280923, 301787157353771, 14188276949397301, 22662903194758542865, 430644772287132696121, 1800653989272587268758525
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| a(4) = 17 because 1/F1 + 1/F2 + 1/F3 + 1/F4 = 1 + 1 + 1/2 + 1/3 = 17/6 and the numerator is 17
1, 2, 5/2, 17/6, 91/30, 379/120, 5047/1560, 35849/10920, 614893/185640, 6800951/2042040, 607326679/181741560, ... = A059247/A035105
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MAPLE
| BB:=n->sum(1/fibonacci(i), i=1..n): a:=n->floor(numer(BB(n))): seq(a(n), n=1..19); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 28 2007
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CROSSREFS
| Cf. A000045, A035105.
Sequence in context: A016121 A195137 A026822 * A203006 A143878 A081546
Adjacent sequences: A059245 A059246 A059247 * A059249 A059250 A059251
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KEYWORD
| nonn,easy,frac
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AUTHOR
| Avi Peretz (njk(AT)netvision.net.il), Jan 22 2001
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EXTENSIONS
| More terms from Naohiro Nomoto (6284968128(AT)geocities.co.jp), Jun 21 2001
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