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A044415
Numbers n such that string 8,3 occurs in the base 10 representation of n but not of n-1.
0
83, 183, 283, 383, 483, 583, 683, 783, 830, 883, 983, 1083, 1183, 1283, 1383, 1483, 1583, 1683, 1783, 1830, 1883, 1983, 2083, 2183, 2283, 2383, 2483, 2583, 2683, 2783, 2830, 2883, 2983, 3083, 3183, 3283, 3383, 3483, 3583
OFFSET
1,1
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {8, 3}]>0, 1, 0], {n, 4000}], {0, 1}][[;; , 2]] (* Harvey P. Dale, Sep 04 2024 *)
CROSSREFS
Sequence in context: A182479 A106094 A142443 * A044796 A106900 A142621
KEYWORD
nonn,base
STATUS
approved