cp's OEIS Frontend

A075736 Fibonacci numbers F(k) as k runs through the products of an odd number of distinct primes A030059 (mu(k)=-1).

%I A075736 #5 Sep 22 2020 06:08:59
%S A075736 1,2,5,13,89,233,1597,4181,28657,514229,832040,1346269,24157817,
%T A075736 165580141,267914296,433494437,2971215073,53316291173,956722026041,
%U A075736 2504730781961,27777890035288,44945570212853,190392490709135
%N A075736 Fibonacci numbers F(k) as k runs through the products of an odd number of distinct primes A030059 (mu(k)=-1).
%F A075736 a(n) = A000045(A030059(n)).
%e A075736 30=2*3*5 and fibonacci(30)=832040, 31 is prime and fibonacci(31)=1346269,...
%p A075736 A075736 := proc(n)
%p A075736     combinat[fibonacci](A030059(n)) ;
%p A075736 end proc:
%p A075736 seq(A075736(n),n=1..40) ; # _R. J. Mathar_, Sep 22 2020
%Y A075736 Cf. A000045, A030059, A074691.
%K A075736 easy,nonn
%O A075736 1,2
%A A075736 _Jani Melik_, Oct 07 2002