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 A070795 #10 Oct 21 2019 02:35:09
%S A070795 102,105,150,156,201,204,255,300,303,309,354,402,408,453,501,507,552,
%T A070795 600,606,609,651,705,708,750,804,807,903,906,1032,1065,1122,1155,1212,
%U A070795 1245,1290,1302,1335,1380,1425,1470,1515,1560,1605,1650,1740,1830,1896
%N A070795 Integers n such that the 'Reverse and Add!' trajectory of n joins the trajectory of 102.
%H A070795 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a>
%e A070795 The trajectory of 303 is part of the trajectory of 102; the trajectory of 750 joins the trajectory of 102 at 6666 after 3 steps.
%t A070795 limit = 10^3; x = NestList[ # + IntegerReverse[#] &, 102, limit];
%t A070795 Select[Range[1896],
%t A070795 Intersection[NestList[ # + IntegerReverse[#] &, #, limit],
%t A070795 x] != {} &] (* _Robert Price_, Oct 20 2019 *)
%Y A070795 Cf. A070788 - A070794, A070796 - A070798, A063049.
%K A070795 base,nonn
%O A070795 1,1
%A A070795 _Klaus Brockhaus_, May 07 2002