A033657 Trajectory of 23 under map x->x + (x-with-digits-reversed).

23, 55, 110, 121, 242, 484, 968, 1837, 9218, 17347, 91718, 173437, 907808, 1716517, 8872688, 17735476, 85189247, 159487405, 664272356, 1317544822, 3602001953, 7193004016, 13297007933, 47267087164

Offset

0,1

Links

Table of n, a(n) for n=0..23.

Index entries for sequences related to Reverse and Add!

Formula

a(n) = A033655(n-1) = A033650(n+1), n>1. - R. J. Mathar, Oct 22 2008

Crossrefs

Cf. A033650, A033655.

Sequence in context: A118603 A303891 A264117 * A305283 A166144 A007795

Adjacent sequences: A033654 A033655 A033656 * A033658 A033659 A033660

Keyword

nonn,base

Author

N. J. A. Sloane.

Status

approved