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A044743
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Numbers n such that string 3,0 occurs in the base 10 representation of n but not of n+1.
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0
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30, 130, 230, 309, 330, 430, 530, 630, 730, 830, 930, 1030, 1130, 1230, 1309, 1330, 1430, 1530, 1630, 1730, 1830, 1930, 2030, 2130, 2230, 2309, 2330, 2430, 2530, 2630, 2730, 2830, 2930, 3099, 3130, 3230, 3309, 3330, 3430, 3530, 3630, 3730, 3830, 3930, 4030
(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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MATHEMATICA
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Flatten[Position[Partition[Table[Boole[MemberQ[Partition[IntegerDigits[n], 2, 1], {3, 0}]], {n, 6000}], 2, 1], {1, 0}]] (* Vincenzo Librandi, Aug 19 2015 *)
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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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EXTENSIONS
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STATUS
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approved
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