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%I #21 Jul 15 2021 01:45:55
%S 363,1448,3255,5784,9035,13008,17703,23120,29259,36120,43703,52008,
%T 61035,70784,81255,92448,104363,117000,130359,137680,144440,152920,
%U 159243,174768,191015,207984,225675,244088,263223,283080,303659,314780,324960
%N Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 19.
%C (19*m)^2 + 2*m for m >= 1 are terms of this sequence (see comment in A031749). The first term that is not of this form is a(20) = 137680. - _Chai Wah Wu_, Jun 19 2016
%H Charles R Greathouse IV, <a href="/A031697/b031697.txt">Table of n, a(n) for n = 1..10000</a> (first 60 terms from Vincenzo Librandi)
%t Select[Range[350000],!IntegerQ[Sqrt[#]] &&Min[ContinuedFraction[Sqrt[#]][[2]]] == 19&](* _Vincenzo Librandi_, Feb 10 2012 *)
%K nonn
%O 1,1
%A _David W. Wilson_