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 A378021 #6 Nov 15 2024 05:07:00
%S A378021 3,9,8,3,4,8,4,1,8,8,4,1,4,9,7,9,3,8,1,4,0,6,2,0,2,0,8,4,0,4,1,8,2,1,
%T A378021 9,4,1,6,2,0,7,0,1,7,2,1,0,0,4,0,0,1,3,2,0,6,5,6,3,5,7,1,9,2,6,2,3,2,
%U A378021 0,1,3,9,9,5,7,5,2,0,1,9,3,9,9,4,2,9,1,0,7,5,9,1,1,7,7,3,3,6,1,1
%N A378021 Decimal expansion of Pi*G - 33*zeta(3)/16, where G = A006752.
%D A378021 Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 1.7.2, p. 55.
%F A378021 Equals Sum_{n>=1} (-1)^(n+1)/n^2 Sum_{k=1..n} 1/(k + n) (see Finch).
%e A378021 0.3983484188414979381406202084041821941620701721...
%t A378021 RealDigits[Pi Catalan-33Zeta[3]/16,10,100][[1]]
%Y A378021 Cf. A000796, A002117, A006752, A378003.
%K A378021 nonn,cons
%O A378021 0,1
%A A378021 _Stefano Spezia_, Nov 14 2024