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 A169824 Numbers n such that n is divisible by n-with-its-digits-reversed. 3
 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20, 22, 30, 33, 40, 44, 50, 55, 60, 66, 70, 77, 80, 88, 90, 99, 100, 101, 110, 111, 121, 131, 141, 151, 161, 171, 181, 191, 200, 202, 212, 220, 222, 232, 242, 252, 262, 272, 282, 292, 300, 303, 313, 323, 330, 333, 343, 353, 363, 373, 383, 393 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS If n is a term, then so is n*10^k. Positive terms in A002113 is a subsequence. - Chai Wah Wu, Sep 28 2017 a(n) = A061917(n+1) for 1 <= n < 78, but a(78) = 510 differs from A061917(79) = 515. - Georg Fischer, Oct 28 2018 LINKS Chai Wah Wu, Table of n, a(n) for n = 1..10000 Erich Friedman, What's Special About This Number? (See the entry for "540") L. H. Kendrick, Young Graphs: 1089 et al., J. Int. Seq. 18 (2015) 15.9.7. EXAMPLE 40 is divisible by 4. MATHEMATICA fQ[n_] := Mod[n, FromDigits@ Reverse@ IntegerDigits@ n] == 0; Select[ Range@ 399, fQ@# &] (* Robert G. Wilson v, Jun 10 2010 *) PROG (Python) A169824_list = [n for n in range(1, 1000) if not n % int(str(n)[::-1])] # Chai Wah Wu, Sep 28 2017 CROSSREFS Cf. A031877. Cf. A002113. - Robert G. Wilson v, Jun 10 2010 Sequence in context: A096091 A084050 A281625 * A325152 A061917 A125289 Adjacent sequences:  A169821 A169822 A169823 * A169825 A169826 A169827 KEYWORD nonn,base AUTHOR N. J. A. Sloane, May 29 2010 STATUS approved

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Last modified August 13 00:27 EDT 2020. Contains 336441 sequences. (Running on oeis4.)