%I A081979
%S A081979 2,8,75025,610
%N A081979 Smallest Fibonacci number with 2n divisors, or 0 if no such number exists.
%C A081979 Further known entries are a(12)=A000045(91); a(16)=A000045(44); a(24)=A000045(50); 
               a(32)=A000045(30); a(36)=A000045(24); a(48)=A000045(56); a(64)=A000045(54); 
               a(80)=A000045(36); a(96)=A000045(182); a(128)=A000045(128) ; a(168)=A000045(48); 
               a(192)=A000045(110); a(256)=A000045(80),..., a(688128)=A000045(240) 
               from the Kelly factorizations. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Apr 05 2007
%H A081979 B. Kelly, <a href="http://home.att.net/~blair.kelly/mathematics/fibonacci/
               ">Fibonacci Factorizations</a>.
%e A081979 a(2)=8 because 8 is the smallest Fibonacci number with 4 divisors (1,
               2,4,8).
%Y A081979 Cf. A081978.
%Y A081979 Sequence in context: A058437 A046967 A007753 this_sequence A012672 A024340 
               A012667
%Y A081979 Adjacent sequences: A081976 A081977 A081978 this_sequence A081980 A081981 
               A081982
%K A081979 more,nonn
%O A081979 1,1
%A A081979 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 03 2003
%E A081979 Corrected by Emeric Deutsch (deutsch(AT)duke.poly.edu), Apr 19 2005