%I A020169
%S A020169 4,8,10,15,20,21,35,40,105,145,231,344,561,609,645,671,703,841,1065,1105,
%T A020169 1281,1387,1417,1729,1885,1891,2121,2465,2701,2821,3045,3053,3829,4033,
%U A020169 4205,4521,4870,5365,5565,6161,6892,7957,8295,8321,8695,8905,8911,9253
%N A020169 Pseudoprimes to base 41.
%H A020169 R. J. Mathar, <a href="b020169.txt">Table of n, a(n) for n=1..1003</a>
%H A020169 <a href="Sindx_Ps.html#pseudoprimes">Index entries for sequences related 
               to pseudoprimes</a>
%Y A020169 Sequence in context: A120064 A028873 A153975 this_sequence A082934 A144570 
               A036311
%Y A020169 Adjacent sequences: A020166 A020167 A020168 this_sequence A020170 A020171 
               A020172
%K A020169 nonn
%O A020169 1,1
%A A020169 David W. Wilson (davidwwilson(AT)comcast.net)