OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[700], Intersection[IntegerDigits[#, 4], IntegerDigits[#, 6]]=={}&] (* Harvey P. Dale, Jan 29 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved