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%I #11 Aug 04 2015 07:16:58
%S 9,35,1387,1921,2071,2209,2321,6541,7957,8365,8695,9809,10349,11041,
%T 13747,16589,24431,30721,31483,32773,35791,38503,40321,65201,68251,
%U 68851,86657,97921,109561,112141,117569,119641,120961,143009,151183,151747
%N Strong pseudoprimes to base 71.
%H R. J. Mathar, <a href="/A020297/b020297.txt">Table of n, a(n) for n = 1..210</a>
%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
%K nonn
%O 1,1
%A _David W. Wilson_