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 A063055 #5 Mar 30 2012 17:27:33 %S A063055 2996,3995,5993,6992,7991,8089,8179,8269,8359,8449,8539,8629,8719, %T A063055 8809,8899,8989,8990,9088,9178,9268,9358,9448,9538,9628,9718,9808, %U A063055 9898,9988,13397,14387,15377,16367,17357,17897,18347,18887,19337,19877,23396 %N A063055 Integers n > 1997 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 1997. %C A063055 Subsequence of A023108. %H A063055 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %e A063055 The trajectory of 3995 reaches 9988 in one step and 9988 is a term in the trajectory of 1997, so 3995 belongs to the present sequence. The corresponding term in A063056, giving the number of steps, accordingly is 1. %Y A063055 A033865, A023108, A063054, A063056. %K A063055 base,nonn %O A063055 0,1 %A A063055 _Klaus Brockhaus_, Jul 07 2001