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 A379391 #5 Dec 22 2024 15:56:33 %S A379391 1,2,2,7,3,6,7,6,5,7,0,5,7,1,7,1,5,8,8,8,7,8,8,6,5,0,3,2,2,7,1,4,1,3, %T A379391 1,9,1,7,9,6,5,8,3,8,8,1,3,5,8,7,8,1,2,9,6,0,0,9,7,1,4,3,9,8,0,0,5,5, %U A379391 4,6,6,7,9,9,1,8,1,7,6,7,6,0,1,2,1,3,7,1,5,2,4,4,5,5,8,4,1,9,0,6 %N A379391 Decimal expansion of sqrt(Pi^2 - 4)/(2*Pi^2). %D A379391 Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 8.4.2, p. 494. %e A379391 0.1227367657057171588878865032271413191796583881... %t A379391 RealDigits[Sqrt[Pi^2-4]/(2Pi^2),10,100][[1]] %Y A379391 Cf. A002388, A164102. %K A379391 nonn,cons %O A379391 0,2 %A A379391 _Stefano Spezia_, Dec 22 2024