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A044742 Numbers n such that string 2,9 occurs in the base 10 representation of n but not of n+1. 0
29, 129, 229, 299, 329, 429, 529, 629, 729, 829, 929, 1029, 1129, 1229, 1299, 1329, 1429, 1529, 1629, 1729, 1829, 1929, 2029, 2129, 2229, 2299, 2329, 2429, 2529, 2629, 2729, 2829, 2999, 3029, 3129, 3229, 3299, 3329, 3429 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

MATHEMATICA

Flatten[Position[Partition[Table[Boole[MemberQ[Partition[ IntegerDigits[ n], 2, 1], {2, 9}]], {n, 3500}], 2, 1], {1, 0}]] (* Harvey P. Dale, Jan 18 2015 *)

CROSSREFS

Sequence in context: A188764 A048636 A044361 * A142494 A260260 A067985

Adjacent sequences:  A044739 A044740 A044741 * A044743 A044744 A044745

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 20 16:25 EDT 2019. Contains 327242 sequences. (Running on oeis4.)