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

1, 2, 5, 13, 89, 233, 1597, 4181, 28657, 514229, 832040, 1346269, 24157817, 165580141, 267914296, 433494437, 2971215073, 53316291173, 956722026041, 2504730781961, 27777890035288, 44945570212853, 190392490709135

Offset: 1

Author

Jani Melik, Oct 07 2002

Keywords

• easy
• nonn

Examples

			30=2*3*5 and fibonacci(30)=832040, 31 is prime and fibonacci(31)=1346269,...
		

Crossrefs

Cf. A000045, A030059, A074691.

Programs

Maple

A075736 := proc(n)
    combinat[fibonacci](A030059(n)) ;
end proc:
seq(A075736(n),n=1..40) ; # R. J. Mathar, Sep 22 2020

Formula

a(n) = A000045(A030059(n)).