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 A334506 #25 Jul 26 2022 16:04:14 %S A334506 1,2,1,2,2,1,1,6,6,4,4,14,14,1,1,14,14,12,12,62,62,8,8,126,126,28,28, %T A334506 30,30,1,1,30,30,28,28,1022,1022,24,24,126,126,124,124,4094,4094,16, %U A334506 16,2046,2046,252,252,1022,1022,56,56,32766,32766,60,60,62,62,1,1,62,62,60,60,8190 %N A334506 Eventual period of a single cell in rule 161 cellular automaton in a cyclic universe of width n. %C A334506 _Bradley Klee_ computed a(1)-a(10). %D A334506 Bradley Klee, Posting to Math Fun Mailing List, Apr 26 2020 %H A334506 Angelo Rosso, <a href="/A334506/b334506.txt">Table of n, a(n) for n = 1..100</a> %Y A334506 Cf. A180001, A334496, A334499-A334515. %K A334506 nonn %O A334506 1,2 %A A334506 _N. J. A. Sloane_, May 05 2020 %E A334506 a(11)-a(40) from _Jinyuan Wang_, May 09 2020 %E A334506 a(41)-a(50) from _Vaclav Kotesovec_, May 10 2020 %E A334506 a(51) and beyond from _Angelo Rosso_, Jul 26 2022