More conjectures!

[David Wilson]

> %F A102380 Conjecture: the sequence can be generated by taking the powers 
> of three and the numbers 2, 4, 6, 7, 14, and applying the rule 'if x is in 
> sequence then so is 5x'. - Ralf Stephan, Jan 07 2004
> %N A102380 Moduli n for which the Fibonacci numbers (mod n) form a 
> complete residue class.

This description of A102380 given above does not agree with A102380 in the 
database.  I would guess that A102830 was added to the database, Ralph 
copied it, then A102380 was removed from the database as a duplicate of 
A079002 and replaced with a new sequence.

At any rate, supposing A102380 was a duplicate of A079002, the conjecture is 
not correct.  A true characterization of A079002 is given on the current %F 
line.  This characterization:

%F A079002 Consists of the integers of the form: 5^k, 2*5^k, 4*5^k, 3^j*5^k, 
6*5^k, 7*5^k and 14*5^k. [see Concrete Mathematics]

is correct if slightly redundant, since numbers of the form 3^j*5^k include 
numbers of the form 5^k.