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A177496 a(n) = least k such that the remainder when 1000^k is divided by k is n. 0
3, 62, 997, 6, 115, 7, 51, 14, 991, 11, 23, 13, 21, 17, 197, 24, 983, 158, 109, 35, 89, 42, 977, 61, 39, 34, 139, 36, 971, 38, 3291, 188, 967, 66, 193, 92, 57, 74, 999161, 52, 137, 479, 69, 239, 191, 53, 953, 49, 317, 70, 73, 79, 947, 65291, 63, 59, 448991, 114, 941 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

MATHEMATICA

t = Table[0, {98}]; k = 1; While[k < 10000000, a = PowerMod[1000, k, k]; If[a < 99 && t[[a]] == 0, t[[a]] = k; Print[{a, k}]]; k++ ]; t

CROSSREFS

Cf. A036236, A078457, A119678, A119679, A127816, A119715, A119714, A127817, A127818, A127819, A127820, A127821, A128154, A128155, A128156, A128157, A128158, A128159, A128160, A128361, A128362, A128363, A128364, A128365, A128366, A128367, A128368, A128369, A128370, A128371, A128372, A177495

Cf. A128149, A128150, A128172.

Sequence in context: A239576 A279974 A275746 * A104403 A301609 A144422

Adjacent sequences:  A177493 A177494 A177495 * A177497 A177498 A177499

KEYWORD

nonn

AUTHOR

Alexander Adamchuk, May 10 2010

STATUS

approved

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Last modified October 20 17:40 EDT 2019. Contains 328268 sequences. (Running on oeis4.)