OFFSET
1,1
MATHEMATICA
cf28Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Length[ ContinuedFraction[ s][[2]]]]==28]; Select[Range[2400], cf28Q] (* Harvey P. Dale, Mar 10 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved