%I #6 Aug 25 2014 11:20:48
%S 5,6,6,6,1,8,22,12,4,2,10,4,35,20,2,24,22,4,58,2,24,10,60,8,11,74,12,
%T 24,19,2,98,48,6,26,24,4,43,58,86,8,17,16,32,12,2,64,42,16,174,26,22,
%U 90,68,12,12,20,62,30,10,2,20,98,24,92,47,8,206,26,56,28,70,8,93,98,26
%N Period of continued fraction for sqrt(13)*n.
%t With[{c=Sqrt[13]},Table[Length[ContinuedFraction[c*n][[2]]],{n,80}]] (* _Harvey P. Dale_, Aug 25 2014 *)
%K nonn
%O 1,1
%A _R. K. Guy_, Oct 26, 2001