OFFSET
1,1
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
MATHEMATICA
cf81Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Min[ContinuedFraction[s][[2]]]]==81]; Select[Range[5144000], cf81Q] (* Harvey P. Dale, Jul 10 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved