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A218166 a(n) is the smallest positive integer k such that k^256 + 1 == 0 mod p, where p is the n-th prime of the form 1 + 512*b (see A076339). 0
62, 10, 24, 3, 15, 98, 325, 6, 25, 52, 114, 135, 330, 53, 21, 55, 248, 365, 66, 304, 125, 41, 60, 426, 157, 27, 116, 511, 788, 27, 36, 152, 185, 317, 112, 228, 490, 563, 99, 198, 828, 436, 585, 1107, 834, 1042, 82, 101, 133, 287, 348, 119, 485, 2323, 148, 133 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A076339(n): primes of form 512*n+1.

LINKS

Table of n, a(n) for n=1..56.

MATHEMATICA

aa = {}; Do[p = Prime[n]; If[Mod[p, 512] == 1, k = 1; While[ ! Mod[k^256 + 1, p] == 0, k++ ]; AppendTo[aa, k]], {n, 20000}]; aa

CROSSREFS

Cf. A076339.

Sequence in context: A110823 A058913 A236301 * A106657 A033382 A143733

Adjacent sequences:  A218163 A218164 A218165 * A218167 A218168 A218169

KEYWORD

nonn

AUTHOR

Michel Lagneau, Oct 22 2012

STATUS

approved

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Last modified August 1 00:13 EDT 2021. Contains 346377 sequences. (Running on oeis4.)