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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A043902 Numbers k such that 1 and 3 occur juxtaposed in the base-6 representation of k but not of k+1. 0 9, 19, 45, 59, 81, 91, 119, 127, 153, 163, 189, 199, 225, 235, 261, 275, 297, 307, 359, 369, 379, 405, 415, 441, 451, 477, 491, 513, 523, 551, 559, 585, 595, 621, 631, 657, 667, 719, 729, 739, 767, 775, 801, 811, 837, 847, 873 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 LINKS Table of n, a(n) for n=1..47. CROSSREFS Cf. A007092. Sequence in context: A286624 A058510 A043122 * A048696 A046103 A146459 Adjacent sequences: A043899 A043900 A043901 * A043903 A043904 A043905 KEYWORD nonn,base AUTHOR Clark Kimberling STATUS approved

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Last modified August 18 19:11 EDT 2024. Contains 375273 sequences. (Running on oeis4.)