%I #18 Jun 13 2018 09:15:23
%S 9,25,27,45,81,91,225,249,325,405,481,511,561,645,747,793,891,925,949,
%T 1105,1245,1247,1345,1377,1387,1431,1525,1541,1729,1825,2025,2071,
%U 2101,2241,2257,2421,2465,2701,2821,2871,2905,3825,4033,4239,4453,5185,5611
%N Pseudoprimes to base 82.
%C Composite numbers n such that 82^(n-1) == 1 (mod n). - _Michel Lagneau_, Feb 18 2012
%H T. D. Noe, <a href="/A020210/b020210.txt">Table of n, a(n) for n = 1..1000</a>
%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
%t base = 82; t = {}; n = 1; While[Length[t] < 100, n++; If[! PrimeQ[n] && PowerMod[base, n-1, n] == 1, AppendTo[t, n]]]; t (* _T. D. Noe_, Feb 21 2012 *)
%Y Cf. A001567 (pseudoprimes to base 2).
%K nonn
%O 1,1
%A _David W. Wilson_