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A044179
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Numbers n such that string 5,6 occurs in the base 7 representation of n but not of n-1.
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0
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41, 90, 139, 188, 237, 286, 335, 384, 433, 482, 531, 580, 629, 678, 727, 776, 825, 874, 923, 972, 1021, 1070, 1119, 1168, 1217, 1266, 1315, 1364, 1413, 1462, 1511, 1560, 1609, 1658, 1707, 1756, 1805, 1854, 1903, 1952, 2001
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text;
internal format)
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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, 7], {5, 6}] >0, 1, 0], {n, 2500}], {0, 1}][[All, 2]] (* Harvey P. Dale, Mar 21 2019 *)
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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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