OFFSET
1,1
EXAMPLE
17 is in the sequence because 1/17 = .0588235294117647 0588235294117647 ...
contains every digit at least once ;
31 is not in the sequence because 1/31 = .032258064516129 032258064516129...
without the digit 7.
MAPLE
with(numtheory):Digits:=200:B:={0, 1, 2, 3, 4, 5, 6, 7, 8, 9}: T:=array(1..250)
: for p from 1 to 200 do:ind:=0:n:=floor(evalf(10^200/p)):l:=length(n):n0:=n:s:=0:for
m from 1 to l do:q:=n0:u:=irem(q, 10):v:=iquo(q, 10):n0:=v : T[m]:=u:od: A:=convert(T,
set):z:=nops(A):if A intersect B = B and ind=0 then ind:=1: printf(`%d, `, p):else
fi:od:
MATHEMATICA
A2 := {}; Do[ If[Length[Union[IntegerDigits[Floor[10^200/n]]]] == 10, A2 =
Join[A2, {n}]], {n, 1, 200}]; Print[A2]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Michel Lagneau, Mar 09 2011
STATUS
approved