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Search: id:A109347
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| A109347 |
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Zsigmondy numbers for a = 5, b = 3: Zs(n, 5, 3) is the greatest divisor of 5^n - 3^n (A005058) that is relatively prime to 5^m - 3^m for all positive integers m < n. |
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+0 10
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| 2, 1, 49, 17, 1441, 19, 37969, 353, 19729, 421, 24325489, 481, 609554401, 10039, 216001, 198593, 381405156481, 12979, 9536162033329, 288961, 18306583, 6125659, 5960417405949649, 346561, 103408180634401, 152787181, 3853528045489
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Eric Weisstein's World of Mathematics, Zsigmondy's Theorem
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CROSSREFS
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Cf. A064078-A064083, A109325, A109348, A109349.
Sequence in context: A038021 A127609 A100018 this_sequence A054210 A092650 A104024
Adjacent sequences: A109344 A109345 A109346 this_sequence A109348 A109349 A109350
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KEYWORD
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nonn,new
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AUTHOR
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Jonathan Vos Post (jvospost3(AT)gmail.com), Aug 21 2005
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EXTENSIONS
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Edited, corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 26 2005
Definition corrected by Jerry Metzger, Nov 04 2009
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