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 A063056 #5 Mar 30 2012 17:27:33 %S A063056 1,1,1,1,1,2,2,2,2,2,2,2,2,2,1,1,1,2,2,2,2,2,2,2,2,2,1,0,3,3,3,3,3,1, %T A063056 3,0,3,1,3,3,3,3,3,1,3,1,3,1,3,3,3,3,3,1,3,1,3,1,3,3,3,3,1,3,3,1,3,3, %U A063056 3,3,3,1,3,1,3,1,3,3,3,3,3,1,3,1,3,1,3,3,3,3,3,1,3,1,3,1,2,2,2,3,2,3,2,1,3 %N A063056 a(n) = number of 'Reverse and Add!' operations that have to be applied to the n-th term of A063055 in order to obtain a term in the trajectory of 1997. %H A063056 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %e A063056 3995 is a term of A063055. One 'Reverse and Add!' operation applied to 3995 leads to a term (9988) in the trajectory of 1997, so the corresponding term of the present sequence is 1. %Y A063056 A023108, A033865, A063054, A063055. %K A063056 base,nonn %O A063056 0,6 %A A063056 _Klaus Brockhaus_, Jul 07 2001