%I #6 Mar 30 2012 17:28:10

%S 17467,18287,31817,42641,116359,139483,163673,172283,176383,181549,

%T 190979,225829,226813,231323,259531,288313,299137,307009,352109,

%U 404507,421891,445097,464777,484621,528163,592861,604997,609179,611393,629843

%N Primes p such that x^41 = 2 has a solution mod p, and p is congruent to 1 mod 41.

%H Klaus Brockhaus, <a href="/A190758/b190758.txt">Table of n, a(n) for n = 1..5000</a>

%o (PARI) forprime(p=2, 700000, if(trap(, 0, sqrtn(Mod(2, p), 41); 1), if(p%41==1, print1(p, ", "))));

%Y Cf. A049573, A059236, A142199.

%K nonn

%O 1,1

%A _Klaus Brockhaus_, May 18 2011