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A033670 Reverse and Add! trajectory of 89. 0
89, 187, 968, 1837, 9218, 17347, 91718, 173437, 907808, 1716517, 8872688, 17735476, 85189247, 159487405, 664272356, 1317544822, 3602001953, 7193004016, 13297007933, 47267087164, 93445163438 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

The sequence reaches a palindrome at a(24) = 8813200023188 (cf. A033665). - Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Jun 07 2002

LINKS

Jason Doucette, World Records

I. Peter, More trajectories

Index entries for sequences related to Reverse and Add!

EXAMPLE

a(3) = 968 because 187 + 781 = 968

CROSSREFS

Sequence in context: A044640 A106758 A142335 * A044421 A044802 A142499

Adjacent sequences:  A033667 A033668 A033669 * A033671 A033672 A033673

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 14:19 EST 2012. Contains 206038 sequences.