%I #12 Aug 18 2021 00:10:32
%S 38858,64090,65617,96221,135593,180001,227818,228773,232613,233578,
%T 285517,287657,348541,355657,416554,425633,429554,492026,493429,
%U 499061,501889,503306,507569,578329,663437,666697,669965,673241,676525,679817
%N Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 56.
%K nonn
%O 1,1
%A _David W. Wilson_
%E First term 3137 removed by _Georg Fischer_, Jun 16 2019
