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 A033654 #14 Jul 22 2025 15:31:37 %S A033654 17,88,176,847,1595,7546,14003,44044,88088,176176,847847,1596595, %T A033654 7553546,14007103,44177144,88354288,176599676,853595347,1597190705, %U A033654 6668108656,13236127322,35608290553,71117571206 %N A033654 Trajectory of 17 under map x->x + (x-with-digits-reversed). %H A033654 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %Y A033654 Essentially the same as A033652. %K A033654 nonn,base %O A033654 0,1 %A A033654 _N. J. A. Sloane_