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 A050800 #10 Oct 17 2019 22:54:34
%S A050800 2,50,65,145,170,290,325,442,485,530,730,785,901,962,1025,1090,1157,
%T A050800 1370,1445,1682,1765,1850,1937,2117,2210,2305,2501,2705,2810,3026,
%U A050800 3250,3365,3601,3845,3970,4097,4490,4625,4901,5185,5330,5626,5777,5930,6085
%N A050800 Values of n^2 + 1 resulting from A050796.
%t A050800 t={2}; Do[i=c=2; x=n^2+1; While[i<n&&c!=0,If[IntegerQ[Sqrt[x-i^2]],c=0; AppendTo[t,x]]; i++],{n,3,78}]; t (* _Jayanta Basu_, Jun 01 2013 *)
%Y A050800 Cf. A050796.
%K A050800 nonn
%O A050800 1,1
%A A050800 _Patrick De Geest_, Sep 15 1999