%I #12 Jul 06 2024 15:56:22
%S 363,367,379,383,387,391,411,419,431,439,1448,1480,1536,1568,1576,
%T 1632,1664,1696,1728,1760,3255,3327,3387,3543,3687,3747,3759,3819,
%U 3831,3903,3963,5784,5912,5976,6152,6168,6232,6296,6424,6488,6616,6744,6872,6936
%N Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 19.
%K nonn
%O 1,1
%A _David W. Wilson_
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