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Search: id:A075736
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| A075736 |
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Fibonacci numbers F(k) when k is a product of an odd number of distinct primes A030229 (mu(k)=-1). |
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+0
3
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| 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; listen)
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OFFSET
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1,2
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EXAMPLE
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30=2*3*5 and fibonacci(30)=832040, 31 is prime and fibonacci(31)=1346269,...
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MAPLE
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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);
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CROSSREFS
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Cf. A000045, A030059, A074691.
Adjacent sequences: A075733 A075734 A075735 this_sequence A075737 A075738 A075739
Sequence in context: A081650 A092262 A032015 this_sequence A030426 A075742 A075737
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KEYWORD
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easy,nonn
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AUTHOR
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Jani Melik (jani_melik(AT)hotmail.com), Oct 07 2002
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