%I #11 Aug 05 2015 11:30:03
%S 49,133,341,403,871,901,931,2059,2077,3277,6031,8023,8401,9881,11041,
%T 17593,24929,26599,27001,27133,33227,38503,42127,43213,48133,54961,
%U 66197,79003,96049,106597,127697,135137,137801,148417,149761,163081,170431
%N Strong pseudoprimes to base 30.
%H R. J. Mathar, <a href="/A020256/b020256.txt">Table of n, a(n) for n = 1..203</a>
%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
%K nonn
%O 1,1
%A _David W. Wilson_