OFFSET
1,1
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {5, 0}]>0, 1, 0], {n, 2800}], {0, 1}][[All, 2]] (* Harvey P. Dale, Sep 08 2021 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved