%I A040109
%S A040109 10,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,
%T A040109 20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,
%U A040109 20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1
%N A040109 Continued fraction for sqrt(120).
%H A040109 <a href="Sindx_Con.html#confC">Index entries for continued fractions 
               for constants</a>
%F A040109 a(n)=(1/2)[21+19*(-1)^n]-10*[C(2*n,n) mod 2], with n>=0 [From Paolo P. 
               Lava (ppl(AT)spl.at), Jun 10 2009]
%p A040109 Digits := 100: convert(evalf(sqrt(N)),confrac,90,'cvgts'):
%Y A040109 Sequence in context: A099613 A016530 A059920 this_sequence A036188 A013617 
               A050999
%Y A040109 Adjacent sequences: A040106 A040107 A040108 this_sequence A040110 A040111 
               A040112
%K A040109 nonn,cofr,easy
%O A040109 0,1
%A A040109 N. J. A. Sloane (njas(AT)research.att.com).