%I #16 Aug 18 2021 00:43:11
%S 1049,3217,3445,5021,6569,8506,8689,11314,11738,11953,14285,16825,
%T 17341,18397,20129,20693,21554,22138,22433,22826,23729,24034,24341,
%U 24961,25274,25589,26546,29629,30313,31817,33965,35437,35930,36682,37061,38210
%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 12.
%e CF(sqrt(145)) = (12, (24)), therefore 145 is not in the sequence.
%e CF(sqrt(1049)) = (32, (2,1,1,2,1,4,3,1,5,7,1,12, 12,1,7,5,1,3,4,1,2,1,1,2, 64)), therefore 1049 is in the sequence.
%K nonn
%O 1,1
%A _David W. Wilson_
%E First term 145 removed by _Georg Fischer_, Jun 15 2019
%E Definition clarified by _N. J. A. Sloane_, Aug 18 2021
