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 A306564 #12 Mar 02 2019 11:58:00 %S A306564 1,2,4,6,10,12,18,20,28,36,48,84,132,393,657,744,1140,1580,2704,3244, %T A306564 8700,12250,17395,17860,19505,36785,59100,67805,97440 %N A306564 Record values in A216476. %F A306564 a(n) = A216476(A216502(n)). %e A306564 If we repeatedly apply the "Oware" operation to 11, we get the period-4 cycle - denoting the pivot digit with parentheses - (1)1 -> 0(2) -> 1(1) -> (2)0 -> (1)1 , and no number less than 11 has a cycle of this length or longer. %Y A306564 Cf. A216476, A216502 (positions of records). %K A306564 nonn,base %O A306564 1,2 %A A306564 _Charlie Neder_, Feb 26 2019