OFFSET
1,1
MATHEMATICA
cf69Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Count[ContinuedFraction[s][[2]], 1]]==69]; Select[ Range[250000], cf69Q] (* Harvey P. Dale, Apr 01 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved