%I #15 Oct 07 2023 17:21:42
%S 166,827,1555,7106,13123,45254,90508,171017,881188,1762376,8495047,
%T 15900995,75801946,140712803,448929844,897859688,1784818486,
%U 8633003357,16166006725,68926072886,137753135872
%N Trajectory of 166 under map x->x + (x-with-digits-reversed).
%H Harvey P. Dale, <a href="/A033675/b033675.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a>
%t NestList[#+IntegerReverse[#]&,166,20] (* _Harvey P. Dale_, Oct 07 2023 *)
%K nonn,base
%O 0,1
%A _N. J. A. Sloane_.