OFFSET
1,1
MATHEMATICA
cf67Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], False, Count[ ContinuedFraction[ s] [[2]], 1]==67]]; Select[Range[300000], cf67Q] (* Harvey P. Dale, Dec 17 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved