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A103736
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Fibonacci numbers with nonprime indices.
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0
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0, 1, 3, 8, 21, 34, 55, 144, 377, 610, 987, 2584, 6765, 10946, 17711, 46368, 75025, 121393, 196418, 317811, 832040, 2178309, 3524578, 5702887, 9227465, 14930352, 39088169, 63245986, 102334155, 267914296, 701408733, 1134903170, 1836311903
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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EXAMPLE
| 55 is included because 55 is the 10th Fibonacci number and 10 is composite.
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MAPLE
| with(combinat): a:=proc(n) if isprime(n)=false then fibonacci(n) else fi end: seq(a(n), n=0..52); (Deutsch)
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MATHEMATICA
| Fibonacci /@ Select[Range[0, 46], ! PrimeQ[ # ] &] (* Robert G. Wilson v *)
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CROSSREFS
| Cf. A000045, A018252, A090206.
Sequence in context: A046815 A203848 A160404 * A172243 A101332 A007773
Adjacent sequences: A103733 A103734 A103735 * A103737 A103738 A103739
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet Oct 01 2005
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EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(at)rgwv.com) and Emeric Deutsch (deutsch(AT)duke.poly.edu), Oct 04 2005
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