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 A367036 #12 Dec 09 2023 20:46:50 %S A367036 0,1,0,3,6,5,0,21,41,72,123,196,263,141,18,1440,4096,7653,14251,26900, %T A367036 50771,96743,184329,352548,674886 %N A367036 Number of distinct bracelets of length n (A000029) that eventually result in a cycle with length 2 or greater when used as the starting conditions for a rule 161 cellular automaton in a cyclic universe of circumference n. %e A367036 For n = 2, the three bracelets are 00, 10, 11. Their progressions are as follows: %e A367036 00 -> 11 -> 11 -> 11 -> ... %e A367036 10 -> 01 -> 10 -> 01 -> ... %e A367036 11 -> 11 -> 11 -> 11 -> ... %e A367036 a(2)=1 because only 01 eventually enters a cycle. %Y A367036 Cf. A000029, A334506. %K A367036 nonn,more %O A367036 1,4 %A A367036 _Angelo Rosso_, Nov 02 2023 %E A367036 a(21)-a(25) from _Pontus von Brömssen_, Nov 03 2023