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 A044148 Numbers n such that the string 1,3 occurs in the base 7 representation of n but not of n-1. 0
 10, 59, 70, 108, 157, 206, 255, 304, 353, 402, 413, 451, 490, 549, 598, 647, 696, 745, 756, 794, 843, 892, 941, 990, 1039, 1088, 1099, 1137, 1186, 1235, 1284, 1333, 1382, 1431, 1442, 1480, 1529, 1578, 1627, 1676, 1725, 1774 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MATHEMATICA SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 7], {1, 3}]>0, 1, 0], {n, 2000}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Apr 08 2018 *) CROSSREFS Sequence in context: A126730 A126478 A223470 * A044529 A129330 A045950 Adjacent sequences:  A044145 A044146 A044147 * A044149 A044150 A044151 KEYWORD nonn,base AUTHOR EXTENSIONS Definition reworded by Harvey P. Dale, Apr 08 2018 STATUS approved

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Last modified June 27 16:27 EDT 2022. Contains 354896 sequences. (Running on oeis4.)