A114722 Smallest Fibonacci numbers with prime indices which have n prime factors.
2, 4181, 24157817, 83621143489848422977, 322615043836854783580186309282650000354271239929
Offset: 1
Examples
a(3) = 24157817 because 24157817 is the smallest Fibonacci number with a prime index (that is, 37) which has 3 prime factors (24157817 = 73*149*2221).
Links
- Amiram Eldar, Table of n, a(n) for n = 1..8
Programs
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Mathematica
Transpose[Flatten[Table[Select[{#, PrimeOmega[#]}&/@Fibonacci[Prime[Range[50]]], Last[#]==n&,1], {n, 5}], 1]][[1]] (* To generate the first 6 terms, change 50 to 100 inside Range and change 5 to 6 for the upper limit of n. *) (* Harvey P. Dale, Jun 20 2013 *)
Formula
Extensions
Definition and example clarified by Harvey P. Dale, Jun 20 2013