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A075736 Fibonacci numbers F(k) when k is a product of an odd number of distinct primes A030229 (mu(k)=-1). 2
1, 2, 5, 13, 89, 233, 1597, 4181, 28657, 514229, 832040, 1346269, 24157817, 165580141, 267914296, 433494437, 2971215073, 53316291173, 956722026041, 2504730781961, 27777890035288, 44945570212853, 190392490709135 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

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

MAPLE

with(combinat, fibonacci): fib_m2dsk := proc(n); if (numtheory[mobius](n)=-1) then RETURN(fibonacci(n)); fi; end: seq(fib_m2dsk(i), i=1..100);

CROSSREFS

Cf. A000045, A030059, A074691.

Sequence in context: A081650 A092262 A032015 * A030426 A075742 A075737

Adjacent sequences:  A075733 A075734 A075735 * A075737 A075738 A075739

KEYWORD

easy,nonn

AUTHOR

Jani Melik (jani_melik(AT)hotmail.com), Oct 07 2002

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Last modified February 13 21:59 EST 2012. Contains 205562 sequences.