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

Author

Shyam Sunder Gupta, Feb 19 2006

Keywords

• nonn

Examples

			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).
		

Links

• Amiram Eldar, Table of n, a(n) for n = 1..94
• Blair Kelly, Fibonacci and Lucas Factorizations.

Crossrefs

Column k=9 of A303217.

Programs

PARI

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

Extensions

More terms from Ryan Propper, Apr 26 2006