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 A084896 #30 Feb 16 2025 08:32:50 %S A084896 2,2,4,3,0,2,8,5,8,0,2,8,7,6,0,2,5,7,0,1,2,7,8,0,2,1,9,2,8,2,9,0,6,6, %T A084896 5,4,0,5,0,8,9,7,3,1,4,2,4,0,6,6,0,9,9,7,5,9,1,8,8,2,3,7,0,1,3,8,7,4, %U A084896 0,4,8,0,4,2,2,8,9,9,9,5,7,2,2,4,1,1,1,5,0,5,9,0,9,4,1,9,5,0,2,1,8,5 %N A084896 Decimal expansion of agm(1,4), the arithmetic-geometric mean of 1 and 4. %H A084896 Ivan Panchenko, <a href="/A084896/b084896.txt">Table of n, a(n) for n = 1..1000</a> %H A084896 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Arithmetic-GeometricMean.html">Arithmetic-Geometric Mean</a> %F A084896 2.2430285802876025701278021928290665405089731424066099759188237013874048... %t A084896 RealDigits[ArithmeticGeometricMean[1,4],10,120][[1]] (* _Harvey P. Dale_, May 25 2014 *) %t A084896 RealDigits[N[5Pi/(4EllipticK[9/25]), 102]][[1]] (* _Jean-François Alcover_, Jun 02 2019 *) %o A084896 (PARI) agm(1, 4) \\ _Michel Marcus_, Jun 02 2019 %Y A084896 Cf. A068521 (agm(1,2)), A084895 (agm(1,3)), A084897 (agm(1,5)). %K A084896 nonn,cons,easy %O A084896 1,1 %A A084896 _Eric W. Weisstein_, Jun 10 2003