OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MAPLE
q:= n-> (f-> is({}=f(9) intersect f(10)))({k-> convert(n, base, k)[]}):
select(q, [$1..400])[]; # Alois P. Heinz, Jun 20 2021
MATHEMATICA
Select[Range[1000], Intersection[IntegerDigits[#, 9], IntegerDigits[#, 10]]=={}&] (* Vincenzo Librandi, Jun 07 2012 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved