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 A043985 Numbers k such that 3 and 8 occur juxtaposed in the base-9 representation of k but not of k+1. 0
 35, 75, 116, 156, 197, 237, 278, 323, 359, 399, 440, 480, 521, 561, 602, 642, 683, 723, 764, 804, 845, 885, 926, 966, 1007, 1052, 1088, 1128, 1169, 1209, 1250, 1290, 1331, 1371, 1412, 1452, 1493, 1533, 1574, 1614, 1655, 1695 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..42. MATHEMATICA SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {3, 8}]>0 || SequenceCount[ IntegerDigits[n, 9], {8, 3}]>0, 1, 0], {n, 2000}], {1, 0}][[All, 1]] (* Harvey P. Dale, Jan 17 2023 *) CROSSREFS Cf. A007095. Sequence in context: A044518 A039382 A043205 * A254443 A300160 A257750 Adjacent sequences: A043982 A043983 A043984 * A043986 A043987 A043988 KEYWORD nonn,base AUTHOR Clark Kimberling STATUS approved

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Last modified June 17 18:04 EDT 2024. Contains 373463 sequences. (Running on oeis4.)