%I #10 Aug 17 2021 23:48:27
%S 3251,3259,3267,3271,3291,3299,3307,3319,3323,3331,3343,3347,3359,
%T 3371,3383,3391,3403,3407,3411,3431,3459,3463,3467,3479,13000,13024,
%U 13056,13088,13096,13120,13152,13184,13216,13256,13280,13312,13352,13376,13408
%N 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 57.
%K nonn
%O 1,1
%A _David W. Wilson_
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