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A033657 Trajectory of 23 under map x->x + (x-with-digits-reversed). 0
23, 55, 110, 121, 242, 484, 968, 1837, 9218, 17347, 91718, 173437, 907808, 1716517, 8872688, 17735476, 85189247, 159487405, 664272356, 1317544822, 3602001953, 7193004016, 13297007933, 47267087164 (list; graph; refs; listen; history; text; internal format)
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. [From R. J. Mathar, Oct 22 2008]

CROSSREFS

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

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Last modified October 16 17:39 EDT 2021. Contains 348042 sequences. (Running on oeis4.)