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A061254
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Odd composite numbers n such that primitive part of Fibonacci(n) (see A061446) is prime.
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6
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9, 15, 21, 33, 35, 39, 45, 51, 63, 65, 75, 93, 105, 111, 119, 121, 123, 135, 145, 185, 195, 201, 207, 209, 225, 231, 235, 245, 285, 287, 299, 301, 321, 335, 363, 399, 423, 453, 473, 693, 707, 771, 1047, 1113, 1215, 1365, 1371, 1387, 1533, 1537
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| Brillhart, John; Montgomery, Peter L.; Silverman, Robert D.; Tables of Fibonacci and Lucas factorizations. Math. Comp. 50 (1988), no. 181, 251-260, S1-S15. Math. Rev. 89h:11002.
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LINKS
| David Broadhurst, Table of n, a(n) for n=1..151 yielding primes or probable primes
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CROSSREFS
| Cf. A061446, A061447, A061445, A061442, A061443.
Sequence in context: A097636 A179384 A007962 * A175626 A096788 A050991
Adjacent sequences: A061251 A061252 A061253 * A061255 A061256 A061257
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KEYWORD
| nonn
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AUTHOR
| David Broadhurst (D.Broadhurst(AT)open.ac.uk), Jun 10 2001
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EXTENSIONS
| Definition corrected by T. D. Noe (noe(AT)sspectra.com), Dec 14 2006
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