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Search: id:A074714
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| A074714 |
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Cumulative list of values of prime factors arising in F(2^k) where F(m) is the m-th Fibonacci number. |
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+0
1
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| 3, 7, 47, 127, 1087, 2207, 4481, 21503, 34303, 119809, 524287, 65241089
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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It is possible that there are missing terms.
Going out to Fibonacci(2^9) gives the additional terms 73327699969, 186812208641, 4698167634523379875583, 125960894984050328038716298487435392001. - Lambert Klasen (lambert.klasen(AT)gmx.de), Jan 08 2005
21503 is a factor of Fibonacci(2^10). 524287 is a factor of Fibonacci(2^19). 65241089 is a factor of Fibonacci(2^13). -Donovan Johnson (donovan.johnson(AT)yahoo.com), Feb 21 2008
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EXAMPLE
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F(2^5)= 3*7*47*2207 hence 3,7,47,2207 are in the sequence.
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CROSSREFS
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Sequence in context: A132565 A129518 A007670 this_sequence A064457 A005650 A020754
Adjacent sequences: A074711 A074712 A074713 this_sequence A074715 A074716 A074717
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KEYWORD
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more,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 04 2002
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EXTENSIONS
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3 more terms from Donovan Johnson (donovan.johnson(AT)yahoo.com), Feb 21 2008
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