login
The OEIS is supported by the many generous donors to the OEIS 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

%I #12 Sep 24 2013 02:53:30

%S 167,266,365,563,662,761,860,7069,7159,7249,7339,7429,7519,7609,7699,

%T 7789,7879,7969,8068,8158,8248,8428,8518,8608,8698,8788,8878,8968,

%U 9039,9067,9129,9157,9219,9247,9309,9337,9399,9427,9489,9517,9579,9607,9697

%N Eleven 'Reverse and Add' steps are needed to reach a palindrome.

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

%H Vincenzo Librandi, <a href="/A065216/b065216.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a>

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

%Y A002113, A015992, A065206.

%K nonn,base

%O 1,1

%A _Klaus Brockhaus_, Oct 21 2001

%E OFFSET changed from 0,1 to 1,1 by _Harry J. Smith_, Oct 14 2009

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 10:26 EDT 2024. Contains 371905 sequences. (Running on oeis4.)