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A031429 Least term in period of continued fraction for sqrt(n) is 5. 1

%I

%S 27,104,231,408,635,795,912,1167,1239,1616,1866,2043,2134,2520,2621,

%T 3047,3158,3387,3504,3624,4251,4515,4927,4928,5358,5655,6432,7259,

%U 7779,8136,9062,9063,9833,9840,10040,10241,10650,11067,11491,12144

%N Least term in period of continued fraction for sqrt(n) is 5.

%H Charles R Greathouse IV, <a href="/A031429/b031429.txt">Table of n, a(n) for n = 1..10000</a> (first 300 terms from Vincenzo Librandi)

%t Select[Range[15000], !IntegerQ[Sqrt[#]] && Min[ContinuedFraction[Sqrt[#]][[2]]] == 5&] (* _Vincenzo Librandi_, Feb 07 2012 *)

%K nonn

%O 1,1

%A _David W. Wilson_

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Last modified June 12 08:13 EDT 2021. Contains 344943 sequences. (Running on oeis4.)