OFFSET
1,1
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 5], {3, 1}]>0, 1, 0], {n, 1000}], {1, 0}][[All, 1]] (* Harvey P. Dale, Jul 26 2021 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved