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%I #15 May 09 2021 02:16:49
%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,2,6,2,7,8,6,12,11,21,
%T 24,27,35,45,68,86,117,176,206,260,370,457,565,750,967,1321,1531,1978,
%U 2842,3723,4587,5677,8354,10708,13435,17259,23040,31741,40146,48596,66728,92193,112771,149002,209890
%N Number of terms of A182116 between 2^n and 2^(n+1).
%C This was done with data on Carmichael numbers below 10^21 provided by R. G. E. Pinch, and special computational assistance from William Stein.
%C There are 16396564 Carmichael numbers below 2^69 but only 849752 have the property of A182116. It looks as though the ratio of Carmichael numbers of this type to normal Carmichael numbers converges to a value around 0.051.
%H Richard Pinch, <a href="http://www.chalcedon.demon.co.uk/rgep/publish.html#82">Carmichael numbers up to 10^21</a>
%Y Cf. A002997, A182116, A182108, A182490.
%K nonn
%O 1,25
%A _Brad Clardy_, May 14 2014