Search: id:A106745
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%I A106745
%S A106745 5,6,7,12,21,25,300,305,600,689,742,1418,1547,1744,5275,6355,7477,15312,
%T A106745 16772,33047
%N A106745 Numbers n such that 101101 * 10^n + 1 is prime.
%C A106745 These are anti-Yarborough primes, i.e. primes containing just 1's and 
               0's and they have all been certified. Primality proof for the largest: 
               PFGW Version 20041001.Win_Stable (v1.2 RC1b) [FFT v23.8] Primality 
               testing 101101*10^33047+1 [N-1, Brillhart-Lehmer-Selfridge] Running 
               N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored 
               part 69.89% 101101*10^33047+1 is prime! (194.9694s+0.0907s)
%H A106745 R. Ondrejka, <a href="http://www.utm.edu/research/primes/lists/top_ten/
               ">The Top Ten: a Catalogue of Primal Configurations</a>.
%Y A106745 Cf. A020449.
%Y A106745 Sequence in context: A022566 A047320 A011761 this_sequence A165776 A003273 
               A006991
%Y A106745 Adjacent sequences: A106742 A106743 A106744 this_sequence A106746 A106747 
               A106748
%K A106745 nonn
%O A106745 1,1
%A A106745 Jason Earls (zevi_35711(AT)yahoo.com), May 16 2005

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