%I #4 Mar 30 2012 18:53:09
%S 1,-1,1,-1,0,1,0,0,0,1,-1,0,0,0,1,1,-1,-1,0,0,1,-1,0,0,0,0,0,1,0,0,0,
%T 0,0,0,0,1,0,0,0,0,0,0,0,0,1,1,-1,0,0,-1,0,0,0,0,1,-1,0,0,0,0,0,0,0,0,
%U 0,1,0,0,0,0,0,0,0,0,0,0,0,1,-1,0,0,0,0,0,0,0,0,0,0,0,1,1,-1,0,0,0,0,-1,0,0
%N Triangle read by rows, T(n,k). If k divides n then A008683(n)*A008683(k).
%C A008683 is found in the first column. A087003 appears in the second column.
%C The definition does not match the values for n=k. Apparently T(n,n) has been set to 1, not mu(n)*mu(n). [From _R. J. Mathar_, Mar 14 2009]
%K sign,tabl
%O 1,1
%A _Mats Granvik_, Feb 07 2009