login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A065216 Eleven 'Reverse and Add' steps are needed to reach a palindrome. 3
167, 266, 365, 563, 662, 761, 860, 7069, 7159, 7249, 7339, 7429, 7519, 7609, 7699, 7789, 7879, 7969, 8068, 8158, 8248, 8428, 8518, 8608, 8698, 8788, 8878, 8968, 9039, 9067, 9129, 9157, 9219, 9247, 9309, 9337, 9399, 9427, 9489, 9517, 9579, 9607, 9697 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The number of steps starts at 0, so palindromes (cf. A002113) are excluded.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for sequences related to Reverse and Add!

MATHEMATICA

lenQ[n_]:= Length[NestWhileList[# + FromDigits[Reverse[IntegerDigits[#]]]&, n, #!= FromDigits[Reverse[IntegerDigits[#]]]&, 1, 12]] == 12; Select[Range[1000], lenQ] (* Vincenzo Librandi, Sep 24 2013 *)

CROSSREFS

A002113, A015992, A065206.

Sequence in context: A088291 A140003 A015992 * A142485 A046008 A009840

Adjacent sequences:  A065213 A065214 A065215 * A065217 A065218 A065219

KEYWORD

nonn,base

AUTHOR

Klaus Brockhaus, Oct 21 2001

EXTENSIONS

OFFSET changed from 0,1 to 1,1 by Harry J. Smith, Oct 14 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 14 00:07 EDT 2021. Contains 342941 sequences. (Running on oeis4.)