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 A075731 Fibonacci numbers F(k) for k squarefree (A005117). 1
 1, 1, 2, 5, 8, 13, 55, 89, 233, 377, 610, 1597, 4181, 10946, 17711, 28657, 121393, 514229, 832040, 1346269, 3524578, 5702887, 9227465, 24157817, 39088169, 63245986, 165580141, 267914296, 433494437, 1836311903, 2971215073 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS EXAMPLE 10 is squarefree and fibonacci(10)=55, 11 is squarefree and fibonacci(11)=89. MAPLE with(combinat, fibonacci): fib_dsk := proc(n); if (numtheory[issqrfree](n)='true') then RETURN(fibonacci(n)); fi; end: seq(fib_dsk(i), i=1..100); CROSSREFS Cf. A000045, A005117, A061305. Sequence in context: A326506 A229898 A200275 * A009238 A009203 A202273 Adjacent sequences:  A075728 A075729 A075730 * A075732 A075733 A075734 KEYWORD easy,nonn AUTHOR Jani Melik, Oct 07 2002 STATUS approved

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Last modified May 10 15:00 EDT 2021. Contains 343773 sequences. (Running on oeis4.)