A031659 - OEIS

%I #12 Aug 18 2021 00:10:32

%S 62549,102481,103765,104410,153785,213613,284314,289669,460045,465485,

%T 556957,565945,568957,668018,669653,676213,684458,789169,790946,

%U 794506,798074,799861,803441,807029,808826,1061741,1065865,1078285

%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 71.

%K nonn

%O 1,1

%A _David W. Wilson_

%E First term 5042 removed by _Georg Fischer_, Jun 16 2019