%I #5 Mar 30 2012 18:39:11
%S 6,12,19,25,33,39,46,52,60,66,72,79,85,93,99,102,112,120,126,132,139,
%T 145,153,159,166,172,180,186,192,199,205,206,219,226,232,240,246,252,
%U 259,265,273,279,286,292,300,306,313,309,326,333,339,346,352,360,366
%N Maximum element in the continued fraction for (1/n)*sum(k>=0,1/2^2^k).
%C Values should be confirmed.
%F Conjecture : a(n) is asymptotic to c*n with 6<c<7
%o (PARI) a(n)=vecmax(contfrac(sum(k=0,20,1/2^2^k)/n))
%Y Cf. A007400.
%K nonn
%O 1,1
%A _Benoit Cloitre_, Dec 06 2002