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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
OFFSET
1,1
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
KEYWORD
nonn,base
STATUS
approved