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%I #3 Mar 30 2012 18:51:25
%S 459,1467,1245789,123456789,123456789
%N n has distinct digits in ascending order and n=a-b where a has the digits of n in descending order and b has the digits of n in another order (a and b perhaps with extra zeros).
%D Denis Borris, Ken Duisenberg's Puzzle of the Week, April 20, 2000
%H <a href="http://www.ecst.csuchico.edu/~kend/potw/archive/000420sol.html">Source</a>
%F a(n)=A055158(n)-A055157(n)
%e 459=954-495
%Y Cf. A055162.
%K fini,full,base,nonn
%O 0,1
%A _Henry Bottomley_, Apr 27 2000
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