A114836 Indices of Fibonacci numbers with 9 distinct prime factors.

80, 84, 88, 96, 100, 108, 132, 138, 156, 184, 189, 196, 222, 232, 243, 248, 250, 255, 268, 272, 273, 284, 286, 295, 318, 325, 328, 333, 357, 370, 402, 406, 412, 418, 426, 435, 477, 498, 534, 539, 556, 559, 561, 591, 602, 603, 604, 628, 629, 637, 639, 678

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..94

Blair Kelly, Fibonacci and Lucas Factorizations.

Example

a(1)=80 because the 80th Fibonacci number (i.e., 23416728348467685) consists of 9 distinct prime factors (i.e., 3 x 5 x 7 x 11 x 41 x 47 x 1601 x 2161 x 3041).

Prog

(PARI) n=1; while(n<335, if(omega(fibonacci(n))==9, print1(n, ", ")); n++)

Crossrefs

Column k=9 of A303217.

Sequence in context: A126783 A255477 A296878 * A294740 A069086 A119482

Adjacent sequences: A114833 A114834 A114835 * A114837 A114838 A114839

Keyword

nonn

Author

Shyam Sunder Gupta, Feb 19 2006

Extensions

More terms from Ryan Propper, Apr 26 2006

Status

approved