A033672 Trajectory of 69 under map x->x + (x-with-digits-reversed).

69, 165, 726, 1353, 4884, 9768, 18447, 92928, 175857, 934428, 1758867, 9447438, 17794887, 96644658, 182289327, 906271608, 1712444217, 8836886388, 17673772776, 85401510447, 159803020905, 668823329856

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• base

Links

• G. C. Greubel, Table of n, a(n) for n = 0..1000
• Index entries for sequences related to Reverse and Add!

Programs

Mathematica

NestList[# + IntegerReverse@ # &, 69, 21] (* Michael De Vlieger, Oct 31 2018 *)

Extensions

Name clarified by Michael De Vlieger, Nov 02 2018