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 A357528 #20 Nov 06 2022 09:12:56
%S A357528 0,0,0,1,8,3,9,3,0,8,5,1,7
%N A357528 Decimal expansion of Sum_{j>=1} 1/A031926(j)^2.
%e A357528 0.000183930851...
%Y A357528 Cf. A031926.
%Y A357528 Cf. A085548, A160910, A242301, A356793, A357059, A357483.
%K A357528 nonn,cons,hard,more
%O A357528 0,5
%A A357528 _Artur Jasinski_, Oct 02 2022