This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A218166 #5 Oct 22 2012 18:32:42
%S A218166 62,10,24,3,15,98,325,6,25,52,114,135,330,53,21,55,248,365,66,304,125,
%T A218166 41,60,426,157,27,116,511,788,27,36,152,185,317,112,228,490,563,99,
%U A218166 198,828,436,585,1107,834,1042,82,101,133,287,348,119,485,2323,148,133
%N 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).
%C A218166 A076339(n): primes of form 512*n+1.
%t A218166 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
%Y A218166 Cf. A076339.
%K A218166 nonn
%O A218166 1,1
%A A218166 _Michel Lagneau_, Oct 22 2012