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 A075734 Fibonacci numbers F(k) when k is a product of an even number of distinct primes A030229 (mu(k)=1). 0
 1, 8, 55, 377, 610, 10946, 17711, 121393, 3524578, 5702887, 9227465, 39088169, 63245986, 1836311903, 20365011074, 139583862445, 365435296162, 591286729879, 4052739537881, 17167680177565, 117669030460994 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE 14=2*7 and fibonacci(14)=377, 15=3*5 and fibonacci(15)=610,... MAPLE with(combinat, fibonacci): fib_m1dsk := proc(n); if (numtheory[mobius](n)=1) then RETURN(fibonacci(n)); fi; end: seq((fib_m1dsk((i))), i=1..100); CROSSREFS Cf. A000045, A030229. Sequence in context: A013698 A154245 A143420 * A033890 A010924 A308687 Adjacent sequences:  A075731 A075732 A075733 * A075735 A075736 A075737 KEYWORD easy,nonn AUTHOR Jani Melik, Oct 07 2002 STATUS approved

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Last modified May 18 13:16 EDT 2021. Contains 343995 sequences. (Running on oeis4.)