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A015891
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Numbers k such that k | 5^k + 5.
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20
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1, 2, 5, 6, 10, 30, 70, 1565, 2806, 3126, 51670, 58290, 214405, 285286, 378258, 1854766, 2170486, 2222122, 2247610, 3463230, 4147522, 5942526, 9381126, 14818486, 15743890, 20162858, 34087054, 34838686, 38742166, 71067430
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listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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CROSSREFS
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Cf. A067946 = numbers n such that n divides 5^n-1. Cf. A015951 = numbers n such that n | 5^n + 1.
Cf. A006517, A015888, A015889, A015892, A015893, A015897, A015898, A015902, A015903, A015904, A015905, A015906.
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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