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A044562
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Numbers n such that string 6,1 occurs in the base 7 representation of n but not of n+1.
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0
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43, 92, 141, 190, 239, 288, 307, 337, 386, 435, 484, 533, 582, 631, 650, 680, 729, 778, 827, 876, 925, 974, 993, 1023, 1072, 1121, 1170, 1219, 1268, 1317, 1336, 1366, 1415, 1464, 1513, 1562, 1611, 1660, 1679, 1709, 1758, 1807
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listen;
history;
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], {6, 1}]>0, 1, 0], {n, 2000}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Mar 05 2023 *)
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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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