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A031581 Numbers n such that continued fraction for sqrt(n) has even period and central term 83. 0

%I

%S 6891,6899,6907,6911,6939,6947,6959,6963,6967,6971,6983,6987,6991,

%T 7011,7019,7027,7031,7039,7043,7079,7083,7103,7123,7127,7131,7139,

%U 7151,7159,7179,7187,7199,7207,7211,7219,7223,27560,27648,27680,27688,27744,27752

%N Numbers n such that continued fraction for sqrt(n) has even period and central term 83.

%K nonn

%O 1,1

%A _David W. Wilson_

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Last modified November 13 16:08 EST 2019. Contains 329106 sequences. (Running on oeis4.)