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A020420 Numbers k such that the continued fraction for sqrt(k) has period 81. 0

%I #10 Jul 11 2021 07:23:10

%S 3169,3697,5233,6269,6521,9521,9754,9946,10169,12149,12202,12385,

%T 13738,15461,15706,15898,17321,18922,19853,20065,20341,21977,21985,

%U 23333,24154,24457,24953,25013,25034,25181,27109,27781,27802,28114,28249,28786,28873

%N Numbers k such that the continued fraction for sqrt(k) has period 81.

%K nonn

%O 1,1

%A _David W. Wilson_

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Last modified July 15 10:49 EDT 2024. Contains 374332 sequences. (Running on oeis4.)