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Pseudoprimes to base 94.
1

%I #18 Jun 13 2018 09:15:05

%S 15,57,91,93,95,121,133,155,217,247,285,341,403,435,465,561,589,645,

%T 969,1065,1105,1247,1541,1603,1653,1729,1767,2059,2451,2465,2821,2945,

%U 2977,3053,3565,3751,4047,4123,4351,4495,4961,5461,5685,6601,6665,7099,7107

%N Pseudoprimes to base 94.

%C Composite numbers n such that 94^(n-1) == 1 (mod n). - _Michel Lagneau_, Feb 18 2012

%H T. D. Noe, <a href="/A020222/b020222.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 = 94; 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_