A128156 - OEIS

A128156

a(n) = least k such that the remainder when 16^k is divided by k is n.

3, 7, 13, 6, 11, 10, 87, 62, 209, 18, 35, 122, 4083, 22, 16584420001, 17, 1343851, 34, 453, 44, 215, 26, 469, 58, 69, 46, 121, 36, 266461, 49, 813, 56, 19499, 74, 58501, 230, 123, 218, 2077, 78, 17845, 214, 579, 106, 24313642489, 90, 6541, 88, 57, 206

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

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

MATHEMATICA

t = Table[0, {10000} ]; k = 1; While[ k < 4100000000, a = PowerMod[16, k, k]; If[a < 10001 && 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, A128157, A128158, A128159, A128160, A128149, A128150.

Sequence in context: A366999 A258136 A209387 * A108768 A238476 A118889

Adjacent sequences: A128153 A128154 A128155 * A128157 A128158 A128159

KEYWORD

hard,nonn

AUTHOR

Alexander Adamchuk, Feb 16 2007

EXTENSIONS

More terms from Ryan Propper, Feb 27 2007

STATUS

approved

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