%I #2 May 01 2014 02:47:42
%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
%T 0,0,1,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,-1,0,1,0,0,0,0,0,1,0,-1,0,
%U -1,0,1,0,0,0,0,1,0,-1,0,0,0,-1,0,1,0,0,0,1,0,-1,0,0,1,0,0,-1,0,1,0,0,1,0,-1,0,0,1,0,1,0,0,-1,0,1,0,1,0,-1,0,0,1,0
%N Differences between A071673 and A072768.
%C The term a(0) = A071673(0)-A072768(0) = 0-0 = 0 is not explicitly listed here as to get a better looking triangle.
%o (Scheme) (define (A072769 n) (- (A071673 n) (A072768 n)))
%K sign,tabl
%O 1,1
%A _Antti Karttunen_, Jun 12 2002
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