This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A031620 #16 May 01 2022 17:50:35
%S A031620 13274,21106,21397,21985,44269,58789,75914,77573,78689,93997,96461,
%T A031620 114685,116041,118777,120157,139658,143413,162229,163034,163841,
%U A031620 167906,169546,170369,196093,219865,227417,229325,249962,250961,252965,253970
%N A031620 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 32.
%t A031620 cf32Q[n_]:=Module[{s=Sqrt[n],cf,len},cf=If[IntegerQ[s],{1,1},ContinuedFraction[ s][[2]]];len=Length[cf];OddQ[len]&&cf[[Floor[len/2]]]==cf[[Ceiling[len/2]]] == 32]; Select[ Range[254000],cf32Q] (* _Harvey P. Dale_, May 01 2022 *)
%Y A031620 Subsequence of A003814.
%K A031620 nonn
%O A031620 1,1
%A A031620 _David W. Wilson_
%E A031620 First term 1025 removed by _Georg Fischer_, Jun 16 2019