A328734 Fibonacci numbers F(k) for k in A328733.

1, 2, 3, 21, 34, 610, 196418, 24157817, 39088169, 701408733, 72723460248141, 2427893228399975082453, 781774079430987230203437, 36726740705505779255899443, 150804340016807970735635273952047185, 453973694165307953197296969697410619233826

Offset: 1

Author

Tomás Roca Sánchez, Oct 26 2019

Keywords

• nonn

Examples

			The Fibonacci numbers (A000045) start 0,1,1,2,3,5,8,13,21,..., so the first 1 is a term here, but the second 1 is not. (Note that 0 has infinitely many prime divisors.)
21 = 3 * 7 and 34 = 2 * 17 both have two prime factors, and because they are contiguous in the Fibonacci sequence, 21 is included.
		

Links

• Blair Kelly, Fibonacci factorizations up to 1000 terms

Crossrefs

Cf. A000045, A038575, A328733 (indices).

Extensions

Edited to avoid confusion caused by the pair of 1's in the Fibonacci sequence. - N. J. A. Sloane, Nov 11 2019