OFFSET
1,1
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {6, 3}]>0, 1, 0], {n, 3600}], {1, 0}][[All, 1]] (* Harvey P. Dale, Aug 31 2021 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved