OFFSET
1,2
MATHEMATICA
en6Q[n_]:=Module[{d6=DeleteCases[DigitCount[n, 6], 0]}, Length[d6] == Length[ Union[ d6]]]; Select[Range[150], en6Q] (* Harvey P. Dale, Feb 23 2022 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved