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A044727
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Numbers n such that string 1,4 occurs in the base 10 representation of n but not of n+1.
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0
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14, 114, 149, 214, 314, 414, 514, 614, 714, 814, 914, 1014, 1114, 1149, 1214, 1314, 1499, 1514, 1614, 1714, 1814, 1914, 2014, 2114, 2149, 2214, 2314, 2414, 2514, 2614, 2714, 2814, 2914, 3014, 3114, 3149, 3214, 3314, 3414
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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], {1, 4}]>0, 1, 0], {n, 3500}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Feb 19 2020 *)
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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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