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 A378025 #10 Apr 02 2025 11:00:38
%S A378025 0,3,5,1,5,2,3,0,0,8,2,9,1,9,4,8,9,2,5,0,7,3,0,7,5,1,3,1,6,7,0,6,0,9,
%T A378025 3,9,1,1,7,0,5,8,8,1,2,4,2,4,0,9,8,9,1,6,2,0,8,8,2,8,4,2,8,5,1,4,9,0,
%U A378025 3,9,5,7,6,2,7,1,3,7,4,5,9,3,7,1,9,0,7,3,4,3,9,4,7,7,6,1,2,6,9,2,0
%N A378025 Decimal expansion of 1/2 - log(2)/4 - G/Pi, where G = A006752.
%D A378025 Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 1.7.2, p. 56.
%F A378025 Equals Sum_{n>=1} zeta(2*n)/(2^(4*n)*(2*n + 1)) (see Finch).
%e A378025 0.035152300829194892507307513167060939117058812424...
%t A378025 RealDigits[1/2-Log[2]/4-Catalan/Pi,10,100,-1][[1]]
%Y A378025 Cf. A000796, A002162, A006752, A143233.
%K A378025 nonn,cons
%O A378025 0,2
%A A378025 _Stefano Spezia_, Nov 14 2024