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A044276
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Numbers n such that string 2,7 occurs in the base 9 representation of n but not of n-1.
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0
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25, 106, 187, 225, 268, 349, 430, 511, 592, 673, 754, 835, 916, 954, 997, 1078, 1159, 1240, 1321, 1402, 1483, 1564, 1645, 1683, 1726, 1807, 1888, 1969, 2025, 2131, 2212, 2293, 2374, 2412, 2455, 2536, 2617, 2698, 2779, 2860
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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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Table of n, a(n) for n=1..40.
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MATHEMATICA
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Select[Range[3000], MemberQ[Partition[IntegerDigits[#, 9], 2, 1], {2, 7}]&&!MemberQ[Partition[IntegerDigits[#-1, 9], 2, 1], {2, 7}]&] (* Harvey P. Dale, Sep 30 2011 *)
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CROSSREFS
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Sequence in context: A114254 A042222 A158551 * A044657 A160437 A050589
Adjacent sequences: A044273 A044274 A044275 * A044277 A044278 A044279
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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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