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A114825 Indices of Fibonacci numbers with 11 distinct prime factors. 3
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, 874, 902, 925, 1005, 1048, 1052, 1058, 1073, 1076, 1083, 1101, 1113, 1124, 1131, 1146, 1158, 1162, 1166, 1173, 1195, 1205, 1221 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..81

Blair Kelly, Fibonacci and Lucas Factorizations.

EXAMPLE

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 )

PROG

(PARI) n=1; while(n<315, if(omega(fibonacci(n))==11, print1(n, ", ")); n++)

CROSSREFS

Column k=11 of A303217.

Sequence in context: A215571 A108317 A252963 * A308617 A224982 A256085

Adjacent sequences:  A114822 A114823 A114824 * A114826 A114827 A114828

KEYWORD

nonn

AUTHOR

Shyam Sunder Gupta, Feb 19 2006

EXTENSIONS

More terms from Ryan Propper, Apr 26 2006

a(52)-a(73) from Max Alekseyev, Aug 18 2013

STATUS

approved

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Last modified July 9 22:15 EDT 2020. Contains 335545 sequences. (Running on oeis4.)