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A114826 Indices of Fibonacci numbers with 10 distinct prime factors. 12
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, 1004, 1054, 1075, 1084, 1119, 1126, 1132, 1149, 1169, 1171, 1214, 1222, 1227 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
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)
PROG
(PARI) n=1; while(n<305, if(omega(fibonacci(n))==10, print1(n, ", ")); n++)
CROSSREFS
Column k=10 of A303217.
Sequence in context: A135197 A025371 A025362 * A332725 A253385 A332831
KEYWORD
nonn
AUTHOR
Shyam Sunder Gupta, Feb 19 2006
EXTENSIONS
More terms from Ryan Propper, Apr 26 2006
a(52)-a(64) from Max Alekseyev, Aug 18 2013
STATUS
approved

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Last modified March 29 05:16 EDT 2024. Contains 371264 sequences. (Running on oeis4.)