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Search: id:A141137
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| A141137 |
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Even Fibonacci pseudoprimes: even numbers n such that either (1) n divides Fibonacci(n-1) if n mod 5 = 1 or -1 or (2) n divides Fibonacci(n+1) if n mod 5 = 2 or -2. |
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+0
2
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| 8539786, 12813274, 17340938, 33940178, 64132426, 89733106, 95173786, 187473826, 203211098, 234735586, 353686906, 799171066, 919831058, 1188287794, 1955272906, 2166139898, 2309861746, 2864860298
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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These even Fibonacci pseudoprimes (FPPs) were found by Kenny Richardson (kenyai(AT)yahoo.com). See A081264 for odd FPPs and references. Be aware that some authors use the term "Fibonacci pseudoprime" for pseudoprimes in Lucas sequences. For example, see A005845 for Lucas V(1,-1) pseudoprimes.
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CROSSREFS
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Sequence in context: A160673 A049362 A081639 this_sequence A015378 A151936 A078143
Adjacent sequences: A141134 A141135 A141136 this_sequence A141138 A141139 A141140
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KEYWORD
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nice,nonn
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AUTHOR
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T. D. Noe (noe(AT)sspectra.com), Jun 09 2008
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