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Search: id:A109349
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| A109349 |
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Zsigmondy numbers for a = 7, b = 5: Zs(n, 7, 5) is the greatest divisor of 7^n - 5^n that is relatively prime to 7^m - 5^m for all positibe integers m < n. |
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6
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| 2, 3, 109, 37, 6841, 13, 372709, 1513, 176149, 1661, 964249309, 1801, 47834153641, 75139, 3162961, 3077713, 115933787267041, 30133, 5689910849522509, 3949201, 6868494361, 168846239, 13678413205562919109, 4654801, 97995219736887001
(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, A109347, A109348.
Sequence in context: A164926 A107108 A129729 this_sequence A114373 A117700 A084755
Adjacent sequences: A109346 A109347 A109348 this_sequence A109350 A109351 A109352
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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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