%I #11 Aug 04 2015 06:14:29
%S 15,91,341,435,451,645,703,1247,1271,1387,1695,1729,1891,1905,2047,
%T 2071,2701,2821,3277,3367,3683,4033,4371,4681,4795,4859,5461,5551,
%U 6601,6643,7957,8321,8695,8911,9131,9211,9919,10261,10585,12403,13019,13741,13747
%N Strong pseudoprimes to base 16.
%H R. J. Mathar, <a href="/A020242/b020242.txt">Table of n, a(n) for n = 1..754</a>
%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
%K nonn
%O 1,1
%A _David W. Wilson_