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 A323976 #6 Feb 10 2019 17:15:58 %S A323976 0,1,2,4,5,8,10,12,14,15,19 %N A323976 Records for the number of 'Reverse and Add' steps, needed for a Lychrel number to join the trajectory of a smaller Lychrel number (i.e., its seed). %C A323976 Similar to the number of steps needed to reach a palindrome in the Reverse and Add! trajectories (see A065198 and A065199), the number of steps needed for a Lychrel number to reach the trajectory of its seed is relatively small. %Y A323976 Cf. A065198, A065199, A323975. %K A323976 nonn,base,more %O A323976 1,3 %A A323976 _A.H.M. Smeets_, Feb 10 2019