OFFSET
1,1
MATHEMATICA
cf64Q[n_]:=Module[{s=Sqrt[n]}, !IntegerQ[s]&&Count[ContinuedFraction[s][[2]], 1]==64]; Select[Range[16000], cf64Q] (* Harvey P. Dale, Mar 03 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved