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 A382846 #10 Aug 08 2025 03:16:31
%S A382846 1,4,6,3,0,4,5,3,8,6,0,7,7,6,9,7,2,6,4,5,6,9,1,3,0,0,7,1,1,4,6,0,9,0,
%T A382846 8,0,0,2,0,5,7,4,8,7,9,4,6,9,2,9,1,8,3,5,1,5,5,3,0,2,6,3,6,9,5,8,2,0,
%U A382846 1,5,5,0,4,5,5,8,0,9,2,5,8,0,3,7,8,2,9
%N A382846 Decimal expansion of 4 - Pi^2/4 - 2*log(2).
%H A382846 I. S. Gradsteyn and I. M. Ryzhik, <a href="http://mathtable.com/gr/index.html">Table of integrals, series and products</a> (6th ed.), 2000, (eq. 0.236.7).
%F A382846 Equals Sum_{k>=1} 1/(k*(2*k+1)^2).
%F A382846 Equals Integral_{x=0..1} log(x)*log(1-x^2) dx. - _Amiram Eldar_, Aug 08 2025
%e A382846 0.1463045386077697264569...
%t A382846 RealDigits[4 - Pi^2/4 - 2*Log[2], 10, 120][[1]] (* _Amiram Eldar_, Aug 08 2025 *)
%Y A382846 Cf. A016627, A091476.
%K A382846 nonn,cons
%O A382846 0,2
%A A382846 _Sean A. Irvine_, Apr 06 2025