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A114820 Indices of Fibonacci numbers with 11 prime factors when counted with multiplicity. 1
138, 140, 160, 190, 208, 222, 230, 250, 261, 285, 310, 318, 345, 351, 387, 388, 399, 402, 426, 469, 470, 483, 485, 488, 498, 507, 508, 518, 531, 534, 549, 568, 596, 598, 632, 656, 671, 678, 686, 688, 703, 715, 786, 788, 806, 808, 844, 872, 873, 874, 902 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..77

Blair Kelly, Fibonacci and Lucas Factorizations.

EXAMPLE

a(1)=138 because 138th fibonacci number(i.e. 30960598847965113057878492344) consists of 11 prime factors (i.e. 2*2*2*137*139*461*691*829*18077*28657*1485571)

PROG

(PARI) n=1; while(n<320, if(bigomega(fibonacci(n))==11, print1(n, ", ")); n++)

CROSSREFS

Column k=11 of A303215.

Sequence in context: A200335 A292094 A031964 * A107939 A008888 A045045

Adjacent sequences:  A114817 A114818 A114819 * A114821 A114822 A114823

KEYWORD

hard,nonn,changed

AUTHOR

Shyam Sunder Gupta, Feb 19 2006

EXTENSIONS

More terms from Ryan Propper, May 24 2006

STATUS

approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)