%I #13 Jul 06 2024 16:09:15
%S 5331,5339,5347,5351,5371,5383,5387,5399,5407,5419,5427,5431,5443,
%T 5471,5479,5483,5503,5507,5519,5527,5531,5543,5563,5571,5591,5623,
%U 21320,21376,21408,21416,21472,21504,21536,21544,21632,21640,21664,21696,21704,21760
%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 73.
%K nonn
%O 1,1
%A _David W. Wilson_
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