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Search: id:A114826
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| A114826 |
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Indices of Fibonacci numbers with 10 distinct prime factors. |
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+0
4
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| 90, 126, 165, 256, 258, 266, 296, 304, 322, 369, 375, 376, 424, 428, 429, 474, 484, 494, 506, 574, 578, 589, 633, 646, 652, 658, 663, 664, 668, 669, 670, 687, 703, 705, 716, 724, 742, 754, 779, 782, 807, 845, 875, 892, 906, 909, 921, 946, 956, 964, 986
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Blair Kelly, Fibonacci and Lucas Factorizations.
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EXAMPLE
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a(1)=90 because 90th fibonacci number(i.e. 2880067194370816120) consists of 10 distinct prime factors (i.e. 2^3 * 5 * 11 * 17 * 19 * 31 * 61 * 181 * 541 * 109441)
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PROGRAM
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(PARI) n=1; while(n<305, if(omega(fibonacci(n))==10, print1(n, ", ")); n++)
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CROSSREFS
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Adjacent sequences: A114823 A114824 A114825 this_sequence A114827 A114828 A114829
Sequence in context: A135197 A025371 A025362 this_sequence A103653 A125010 A048705
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KEYWORD
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nonn
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AUTHOR
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Shyam Sunder Gupta (guptass(AT)rediffmail.com), Feb 19 2006
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EXTENSIONS
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More terms from Ryan Propper (rpropper(AT)stanford.edu), Apr 26 2006
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