A031553 - OEIS

%I #12 Jul 06 2024 16:05:18

%S 3027,3031,3051,3067,3079,3083,3091,3099,3119,3139,3147,3151,3163,

%T 3167,3179,3187,3191,3203,3239,3247,12104,12128,12160,12192,12200,

%U 12288,12296,12384,12392,12416,12448,12480,12520,12608,12672,12680,12704,12776,12800

%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 55.

%K nonn

%O 1,1

%A _David W. Wilson_