OFFSET
1,1
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[60000], !IntegerQ[Sqrt[#]]&&Min[ContinuedFraction[Sqrt[#]][[2]]]==9&] (* Vincenzo Librandi, Jan 27 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
References based on the incorrect a(n)=81n^2+2n removed by R. J. Mathar, Nov 18 2010
STATUS
approved