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%I #31 Nov 11 2019 16:02:02
%S 1,2,3,21,34,610,196418,24157817,39088169,701408733,72723460248141,
%T 2427893228399975082453,781774079430987230203437,
%U 36726740705505779255899443,150804340016807970735635273952047185,453973694165307953197296969697410619233826
%N Fibonacci numbers F(k) for k in A328733.
%H Blair Kelly, <a href="http://mersennus.net/fibonacci/">Fibonacci factorizations up to 1000 terms</a>
%e 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.)
%e 21 = 3 * 7 and 34 = 2 * 17 both have two prime factors, and because they are contiguous in the Fibonacci sequence, 21 is included.
%Y Cf. A000045, A038575, A328733 (indices).
%K nonn
%O 1,2
%A _Tomás Roca Sánchez_, Oct 26 2019
%E Edited to avoid confusion caused by the pair of 1's in the Fibonacci sequence. - _N. J. A. Sloane_, Nov 11 2019
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