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%I #5 Apr 10 2013 15:27:38
%S 1,4,-1,8,-1,-1,15,-4,-1,0,21,-4,-1,0,-1,33,-8,-4,0,-1,1,41,-8,-4,0,
%T -1,1,-1,56,-15,-4,0,-1,1,-1,0,69,-15,-8,0,-1,1,-1,0,0,87,-21,-8,0,-4,
%U 1,-1,0,0,1,99,-21,-8,0,-4,1,-1,0,0,1,-1,127,-33,-15,0,-4,4,-1,0,0,1,-1,0
%N Triangle read by rows, A000012 * A143317; 1<=k<=n.
%C Left border = A024916: (1, 4, 8, 15, 21, 33,...).
%C Right border = mu(n), A008683.
%C Row sums = T(n), triangular numbers.
%F Triangle read by rows, A000012 * A143317; 1<=k<=n
%e First few rows of the triangle =
%e 1;
%e 4, -1;
%e 8, -1, -1
%e 15, -4, -1, 0;
%e 21, -4, -1, 0, -1;
%e 33, -8, -4, 0, -1, 1;
%e 41, -3, -4, 0, -1, 1, -1;
%e ...
%Y Cf. A143317, A008683, A024916.
%K sign,tabl
%O 1,2
%A _Gary W. Adamson_, Aug 07 2008
%E Corrected last few terms. - Stuart Orford (sjorford(AT)gmail.com), Dec 22 2008
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