OFFSET
1,1
EXAMPLE
2*1692 = 3384, 3*1692 = 5076. 1692 together with 3384 and 5076 contains every digit.
MATHEMATICA
Select[Range[6000], Length[Union[IntegerDigits[ # ], IntegerDigits[2# ], IntegerDigits[3# ]]] == 10 &]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Tanya Khovanova, Oct 24 2006
STATUS
approved