This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A065319 30 'Reverse and Add' steps are needed to reach a palindrome. 1
 10548, 11538, 12528, 13518, 14508, 20547, 21537, 22527, 23517, 24507, 30546, 31536, 32526, 33516, 34506, 40545, 40849, 41535, 41839, 42525, 42829, 43515, 43819, 44505, 44809, 44899, 45889, 46879, 47869, 48859, 49849, 50544, 50848 (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. 30 is a record (cf. A065199) of the number of 'Reverse and Add' steps needed to reach a palindrome. LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA lenQ[n_]:= Length[NestWhileList[# + FromDigits[Reverse[IntegerDigits[#]]]&, n, #! = FromDigits[Reverse[IntegerDigits[#]]]&, 1, 31]] == 31; Select[Range[10000], lenQ] (* Vincenzo Librandi, Sep 24 2013 *) CROSSREFS Cf. A002113, A065198, A065199, A065318. Sequence in context: A203666 A119866 A292703 * A063060 A187727 A025028 Adjacent sequences:  A065316 A065317 A065318 * A065320 A065321 A065322 KEYWORD nonn,base AUTHOR Klaus Brockhaus, Oct 30 2001 EXTENSIONS Changed offset from 0 to 1 by Vincenzo Librandi, Sep 24 2013 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.

Last modified June 24 17:58 EDT 2019. Contains 324330 sequences. (Running on oeis4.)