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 A365254 #17 Sep 01 2023 04:10:19 %S A365254 8,6,2,3,8,9,7,8,3,9,4,7,3,8,4,0,4,8,6,4,0,8,0,0,2,4,6,0,8,6,7,5,1,1, %T A365254 2,8,1,0,8,5,3,2,9,6,3,6,2,4,5,5,0,6,1,5,2,6,1,9,5,8,4,5,2,9,1,7,9,3, %U A365254 2,0,2,7,5,8,9,2,3,4,7,8,6,0,0,9,7,2,5 %N A365254 Decimal expansion of the central column (converted to base 10) of rule-30 1-D cellular automaton, when started from a single ON cell. %C A365254 This constant is mentioned in Wolfram (2019 and 2022). %C A365254 It is created by treating the central column values (A051023) as binary digits to the right of the radix point and converting the result to base 10. %D A365254 Stephen Wolfram, Twenty Years of A New Kind of Science, Wolfram Media, 2022, p. 290. %H A365254 Paolo Xausa, <a href="/A365254/b365254.txt">Table of n, a(n) for n = 0..10000</a> %H A365254 Stephen Wolfram, <a href="https://writings.stephenwolfram.com/2019/10/announcing-the-rule-30-prizes/">Announcing the Rule 30 Prizes</a>, Stephen Wolfram Writings, 2019. %H A365254 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %e A365254 0.862389783947384048640800246086751128108532963624550... %t A365254 Take[First[RealDigits[FromDigits[{CellularAutomaton[30,{{1},0},{700,{{0}}}],0},2]]],200] %Y A365254 Cf. A051023, A070950. %K A365254 nonn,cons,base %O A365254 0,1 %A A365254 _Paolo Xausa_, Aug 29 2023