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A044324
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Numbers n such that string 8,1 occurs in the base 9 representation of n but not of n-1.
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0
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73, 154, 235, 316, 397, 478, 559, 640, 657, 721, 802, 883, 964, 1045, 1126, 1207, 1288, 1369, 1386, 1450, 1531, 1612, 1693, 1774, 1855, 1936, 2017, 2098, 2115, 2179, 2260, 2341, 2422, 2503, 2584, 2665, 2746, 2827, 2844
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {8, 1}]>0, 1, 0], {n, 3000}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Dec 18 2018 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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