NEW SEQ?

[N. J. A. Sloane]

Just for the record, Zak's sequence will be visible
in a minute:

%I A108782
%S A108782 0,0,0,0,0,0,0,0,0,0,0,9,18,27,36,45,54,63,72,0,0,0,9,18,27,36,45,54,63,
%T A108782 0,0,0,0,9,18,27,36,45,54,0,0,0,0,0,9,18,27,36,45,0,0,0,0,0,0,9,18,27,
%U A108782 36,0,0,0,0,0,0,0,9,18,27,0,0,0,0,0,0,0,0,9,18,0,0,0,0,0,0,0,0,0,9,0,0
%N A108782 Difference between n and the largest number with the same digit set as n.
%t A108782 Table[Max[FromDigits/@ Permutations[IntegerDigits[n]]]-n,{n,150}]
%O A108782 1,12
%K A108782 nonn,base
%A A108782 Zak Seidov (zakseidov(AT)yahoo.com), Jun 29 2005

NJAS