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Search: id:A006687
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| A006687 |
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Duodecimal primes: p = (x^12 + y^12 )/(x^4 + y^4 ).
(Formerly M5418)
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+0
1
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| 241, 5521, 6481, 51361, 346561, 380881, 390001, 1678321, 4332721, 4654801, 5576881, 12707521, 39336721, 41432641, 42942001, 99990001, 167948881, 184970641, 197063761, 205598881
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
A. J. C. Cunningham, Binomial Factorisations, Vols. 1-9, Hodgson, London, 1923-1929; see Vol. 1, pp. 245-259.
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CROSSREFS
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Sequence in context: A119596 A046948 A165383 this_sequence A060893 A165375 A007205
Adjacent sequences: A006684 A006685 A006686 this_sequence A006688 A006689 A006690
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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