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A125556
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Smallest prime p = n*m + 1 such that p divides m^m - 1 for some m > 1.
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1
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3, 11, 61, 13, 31, 241, 43, 257, 271, 251, 1013, 673, 157, 71, 541, 241, 307, 883, 4409, 401, 1471, 463, 5843, 577, 601, 2081, 271, 757, 1973, 241, 2729, 2657, 4951, 1123, 21701, 937, 32191, 14479, 3433, 641, 1723, 2521, 5849, 6689, 1531, 6257, 18143
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Corresponding numbers m > 1 such that a(n) divides m^m - 1 are m = (a(n) - 1)/n = {2,5,20,3,6,40,6,32,30,25,92,56,12,5,36,15,18,...}.
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CROSSREFS
| Cf. A048861 = n^n - 1.
Sequence in context: A136440 A007146 A076475 * A127516 A095237 A185385
Adjacent sequences: A125553 A125554 A125555 * A125557 A125558 A125559
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KEYWORD
| nonn
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AUTHOR
| Alexander Adamchuk (alex(AT)kolmogorov.com), Jan 22 2007
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EXTENSIONS
| Corrected a(47) and extended by Alexander Adamchuk (alex(AT)kolmogorov.com), May 09 2010
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