A020252 - OEIS

%I #11 Aug 04 2015 16:27:32

%S 9,25,27,217,475,703,925,5041,9073,11041,17575,24727,25299,31651,

%T 33227,35881,47197,55537,60701,61975,68251,70561,76627,79003,85321,

%U 95051,96641,111361,115669,137017,137257,146611,153781,174123,193901,216763,220039

%N Strong pseudoprimes to base 26.

%H R. J. Mathar, <a href="/A020252/b020252.txt">Table of n, a(n) for n = 1..226</a>

%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>

%K nonn

%O 1,1

%A _David W. Wilson_