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%I #5 Mar 31 2012 20:35:48
%S 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,
%T 26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
%U 49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72
%N Nonnegative numbers that can be obtained by inserting minus and plus-signs in 123456789.
%C A066957(a(n)) > 0; complement of A136601; A136603 is a subsequence;
%C a(n) = n-1 for n <= 211 = A136601(1).
%C The sequence is finite: a(1715) = 123456789 is the last term.
%H R. Zumkeller, <a href="/A136602/b136602.txt">Table of n, a(n) for n = 1..1715</a>
%K nonn,fini,base
%O 1,3
%A _Reinhard Zumkeller_, Jan 12 2008
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