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%I #4 Mar 31 2012 10:21:59
%S 1,2,3,5,8,17,54,67,208,1753,5042,6311
%N a(n) = 1+A113878(n).
%F Sum_{n>=1} 1/(2^a(n)) = 1/2+1/(2^2)+1/(2^3)+1/(2^5)+1/(2^8)+... = 0.910163879394531305517927948...
%Y Cf. A113824.
%K nonn
%O 1,2
%A _Artur Jasinski_, Jan 27 2006
%E Simplified definition - _R. J. Mathar_, Oct 01 2009
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