%I #11 Aug 06 2015 09:12:06
%S 481,841,1891,3133,3277,3601,3661,4577,4777,6533,8917,10249,11521,
%T 18889,21361,23479,29539,29891,46121,46561,50251,53761,62641,66757,
%U 75241,79381,95033,95951,98671,98881,109771,111361,115921,131539,132239,133237
%N Strong pseudoprimes to base 60.
%H R. J. Mathar, <a href="/A020286/b020286.txt">Table of n, a(n) for n = 1..300</a>
%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
%K nonn
%O 1,1
%A _David W. Wilson_