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Search: id:A128363
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| A128363 |
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a(n) = least k such that the remainder when 23^k is divided by k is n. |
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+0
14
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| 2, 3, 5, 19, 262, 17, 58, 9, 10, 13, 14, 55, 86, 12153, 514, 111823, 95, 25, 30, 12147, 68, 235, 29, 280517, 56, 27, 502, 16805, 51, 49, 166, 35, 62, 1837, 38, 977969, 82, 39, 1370, 289, 122, 9822698929535, 65, 133, 697, 161, 303, 19445, 50, 147, 259, 1247
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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a(42)>10^12 [From Max Alekseyev (maxale(AT)gmail.com), Apr 27 2009]
a(64) = 17832884851 [From Hagen von Eitzen (math(AT)von-eitzen.de), Aug 04 2009]
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LINKS
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Robert G. Wilson v, Table of n, a(n) for n = 1..10000 with -1 for large entries where a(n) has not yet been found
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MATHEMATICA
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t = Table[0, {10000} ]; k = 1; While[ k < 4000000000, a = PowerMod[23, k, k]; If[a < 10001 && t[[a]] == 0, t[[a]] = k; Print[{a, k}]]; k++ ]; t [From Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 04 2009]
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CROSSREFS
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Cf. A128361, A128362, A128364, A128365, A128366, A128367, A128368, A128369, A129370, A128371, A128372. Cf. A036236, A078457, A119678, A119679, A127816, A119715, A119714, A127817, A127818, A127819, A127820, A127821, A128154, A128155, A128156, A128157, A128158, A128159, A128160. Cf. A128149, A128150, A128172.
Sequence in context: A028490 A004064 A164061 this_sequence A106047 A048826 A054798
Adjacent sequences: A128360 A128361 A128362 this_sequence A128364 A128365 A128366
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KEYWORD
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hard,nonn
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AUTHOR
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Alexander Adamchuk (alex(AT)kolmogorov.com), Feb 27 2007
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EXTENSIONS
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a(42) from Hagen von Eitzen (math(AT)von-eitzen.de), Aug 04 2009
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