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Strong pseudoprimes to base 42.
1

%I #11 Aug 06 2015 06:21:11

%S 451,529,1247,1541,1765,1807,1991,7421,9773,11041,12167,13333,14491,

%T 14981,17611,18721,23521,27511,31417,35443,65305,65641,68101,74089,

%U 79003,81631,96727,102719,104653,105271,109061,128143,130561,145351,161101

%N Strong pseudoprimes to base 42.

%H R. J. Mathar, <a href="/A020268/b020268.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_