%I #2 Jan 12 2007 03:00:00
%S 1,-2,-3,2,1,2,-2,0,-2,-2,1,-2,4
%N Erroneous version of A006571.
%D Barry Cipra, What's Happening in the Mathematical Sciences, Vol. 5, Amer. Math. Soc., 2002; see p. 5.
%K dead
%O 1,2