OFFSET
1,1
MATHEMATICA
cf11Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Length[ ContinuedFraction[ s][[2]]]]==11]; Select[Range[5000], cf11Q] (* Harvey P. Dale, Mar 28 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved