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A031627 Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 39. 0

%I #14 Aug 18 2021 00:10:32

%S 9629,31057,31765,32122,66733,86074,110513,111178,112514,114533,

%T 138745,140237,168541,170185,173497,203029,205738,209378,238769,

%U 239746,241706,242689,243674,244661,246641,248629,249626,323465,325741,328025

%N Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 39.

%Y Subsequence of A003814.

%K nonn

%O 1,1

%A _David W. Wilson_

%E First term 1522 removed by _Georg Fischer_, Jun 16 2019

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Last modified May 21 12:49 EDT 2024. Contains 372736 sequences. (Running on oeis4.)