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 A320960 #13 Nov 08 2018 08:56:18 %S A320960 3,9,5,6,2,2,3,9,8,1,3,1,1,8,9,0,2,2,1,5,8,1,5,8,2,6,0,6,0,0,2,5,3,8, %T A320960 8,3,1,7,5,6,7,3,4,0,8,2,9,1,2,8,5,6,3,6,1,7,7,2,7,8,3,1,3,4,7,4,4,5, %U A320960 4,6,5,2,8,1,9,7,9,1,5 %N A320960 Decimal expansion of (1/3)*Pi^2 + 2*gamma^2. %F A320960 Equals A195055 + 2*A155969. %F A320960 The Engel expansion starts: 1, 1, 1, 2, 2, 2, 2, 4, 6, 6, 8, 9, 12, ... %e A320960 Equals 3.9562239813118902215815826060025388317567340829128563617727831... %t A320960 RealDigits[(1/3) Pi^2 + 2 EulerGamma^2, 10, 130] [[1]] %o A320960 (PARI) (1/3)*Pi^2 + 2*Euler^2 \\ _Felix Fröhlich_, Nov 07 2018 %Y A320960 Cf. A195055, A155969. %K A320960 nonn,cons %O A320960 1,1 %A A320960 _Peter Luschny_, Nov 07 2018