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 A296040 #6 Feb 16 2025 08:33:52 %S A296040 2,0,6,6,1,7,6,6,8,6,4,2,4,0,5,1,0,8,4,2,6,8,6,0,1,9,1,5,7,7,2,4,3,1, %T A296040 1,0,0,5,1,0,6,7,2,1,6,8,5,8,2,1,0,4,6,6,2,6,4,1,1,6,1,3,9,0,8,5,6,8, %U A296040 1,6,9,0,6,5,3,4,2,2,2,2,0,0,2,6,0,4,9,5,6,1,0,4,9,2,2,5,1,8,1,8 %N A296040 Decimal expansion of sqrt(1^1 + sqrt(2^2 + sqrt(3^3 + sqrt(4^4 + sqrt(5^5 + ...))))). %H A296040 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/NestedRadical.html">Nested Radical</a> %e A296040 2.0661766864240510842686019157724311005106721685821046... %Y A296040 Cf. A000312, A072449, A099876, A099879, A105546, A105817, A239349, A257574, A257575, A257576, A257577, A257578. %K A296040 nonn,cons %O A296040 1,1 %A A296040 _Ilya Gutkovskiy_, Dec 03 2017