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 A099874 #7 May 23 2024 13:31:35 %S A099874 1,3,6,5,3,0,0,9,4,8,6,0,4,0,0,2,9,6,7,5,5,2,7,4,2,1,6,8,9,8,6,7,3,7, %T A099874 0,5,7,8,9,5,7,0,6,7,6,4,0,2,2,9,2,6,9,4,8,2,7,4,6,8,6,1,1,5,0,4,9,7, %U A099874 1,6,5,8,4,1,1,3,5,2,2,3,8,4,5,5,6,0,6,8,5,8,8,6,3,4,1,5,3,6,9,3,1 %N A099874 Decimal expansion of a nested radical: CubeRoot(1 + CubeRoot(2 + CubeRoot(3 + CubeRoot(4 + ... %e A099874 1.365300948604002967552742168986737... %t A099874 RealDigits[ Fold[(#1 + #2)^(1/3) &, 0, Reverse[Range[100]]], 10, 111][[1]] %o A099874 (PARI) t=0; forstep(n=200,1,-1,t=(t+n)^(1/3)); t %Y A099874 Cf. A072449 for version using square root rather than cube root. %K A099874 cons,easy,nonn %O A099874 1,2 %A A099874 Mark Hudson (mrmarkhudson(AT)hotmail.com), Nov 02 2004