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 A065214 Numbers n such that nine 'Reverse and Add' steps are needed to reach a palindrome. 3
 1397, 1487, 1577, 1667, 1757, 1847, 1937, 2396, 2486, 2576, 2666, 2756, 2846, 2936, 2999, 3395, 3485, 3575, 3665, 3755, 3845, 3935, 3998, 4394, 4484, 4574, 4754, 4844, 4934, 4997, 5393, 5483, 5573, 5663, 5753, 5843, 5933, 5996, 6392, 6482, 6572 (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, 10]] == 10; Select[Range[1000], lenQ] (* Vincenzo Librandi, Sep 24 2013 *) CROSSREFS Cf. A002113, A065206. Different from A015990. Sequence in context: A163054 A110844 A015990 * A336738 A271549 A203918 Adjacent sequences: A065211 A065212 A065213 * A065215 A065216 A065217 KEYWORD nonn,base AUTHOR Klaus Brockhaus, Oct 21 2001 STATUS approved

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Last modified September 16 22:04 EDT 2024. Contains 375979 sequences. (Running on oeis4.)