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Search: id:A114825
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| A114825 |
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Indices of Fibonacci numbers with 11 distinct prime factors. |
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+0
1
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| 140, 144, 150, 160, 162, 190, 204, 208, 230, 234, 261, 285, 306, 310, 345, 351, 354, 372, 387, 388, 399, 438, 459, 469, 470, 475, 483, 485, 488, 507, 508, 518, 531, 549, 568, 596, 598, 632, 656, 671, 686, 688, 715, 788, 806, 808, 822, 834, 844, 872, 873
(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)=140 because 140th fibonacci number(i.e. 81055900096023504197206408605) consists of 11 distinct prime factors (i.e. 3 * 5 * 11 * 13 * 29 * 41 * 71 * 281 * 911 * 141961 * 12317523121 )
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PROGRAM
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(PARI) n=1; while(n<315, if(omega(fibonacci(n))==11, print1(n, ", ")); n++)
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CROSSREFS
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Sequence in context: A001163 A140791 A108317 this_sequence A131492 A090945 A140798
Adjacent sequences: A114822 A114823 A114824 this_sequence A114826 A114827 A114828
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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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