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A044097
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Numbers n such that string 4,0 occurs in the base-5 representation of n but not of n-1.
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1
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20, 45, 70, 95, 100, 120, 145, 170, 195, 220, 225, 245, 270, 295, 320, 345, 350, 370, 395, 420, 445, 470, 475, 495, 500, 545, 570, 595, 600, 620, 645, 670, 695, 720, 725, 745, 770, 795, 820, 845, 850, 870, 895, 920, 945, 970
(list;
graph;
refs;
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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Vincenzo Librandi, Table of n, a(n) for n = 1..1300
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MATHEMATICA
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Flatten[Position[Partition[If[MemberQ[Partition[IntegerDigits[#, 5], 2, 1], {4, 0}], 1, 0]&/@Range[1000], 2, 1], {0, 1}]]+1 (* Harvey P. Dale, Aug 14 2014 *)
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CROSSREFS
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Sequence in context: A256870 A134619 A219716 * A044478 A228319 A236474
Adjacent sequences: A044094 A044095 A044096 * A044098 A044099 A044100
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KEYWORD
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nonn,base
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AUTHOR
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Clark Kimberling
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STATUS
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approved
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