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 A108127 #14 May 24 2025 02:01:53 %S A108127 3,4,2,6,4,6,3,2,5,4,3,2,8,5,6,0,0,8,2,3,8,4,5,1,4,7,9,0,6,2,0,1,7,8, %T A108127 1,5,8,1,6,2,4,3,1,8,1,6,9,3,1,2,6,6,5,4,1,7,5,4,6,2,3,4,7,0,7,7,2,2, %U A108127 4,4,6,6,3,2,2,7,3,8,3,9,8,2,6,7,4,4,1,2,3,4,4,8,7,0,2,5,6,5,3,7,8,1,2,5,2 %N A108127 Decimal expansion of arithmetic-geometric mean (AGM) of 1/Pi and 1/e. %H A108127 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Arithmetic-GeometricMean.html">Arithmetic-Geometric Mean.</a> %e A108127 0.342646325432856008238451479062017815816243181693126654... %t A108127 RealDigits[N[ArithmeticGeometricMean[1/Pi, 1/E], 130]][[1]] %o A108127 (PARI) agm(exp(-1),1/Pi) \\ _Charles R Greathouse IV_, Mar 03 2016 %Y A108127 Cf. A074957. %K A108127 nonn,cons %O A108127 0,1 %A A108127 _Zak Seidov_, Jun 04 2005 %E A108127 Offset corrected by _Sean A. Irvine_, May 24 2025