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%I #15 Aug 14 2015 23:11:23
%S 0,0,0,0,1,11,69,677,6709
%N Conjectured number of Sierpiński numbers less than 10^n.
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Sierpinski_number">Sierpinski number</a>
%F a(n) ~ A236321(n).
%Y Cf. A076336, A236321, A237880.
%K nonn,more
%O 1,6
%A _Arkadiusz Wesolowski_, Jan 22 2014
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