%I A143319
%S A143319 1,3,1,4,1,1,7,4,0,0,6,1,1,1,1,12,8,3,1,1,1,8,1,1,1,1,1,1,15,11,0,0,0,
               0,
%T A143319 0,0,13,5,5,0,0,0,0,0,0,18,10,3,3,3,1,1,1,1,1,12,1,1,1,1,1,1,1,1,1,1,28,
%U A143319 27,4,4,4,4,0,0,0,0,0,0
%V A143319 1,3,-1,4,-1,-1,7,-4,0,0,6,-1,-1,-1,-1,12,-8,-3,1,1,1,8,-1,-1,-1,-1,-1,
               -1,15,-11,0,0,0,
%W A143319 0,0,0,13,-5,-5,0,0,0,0,0,0,18,-10,-3,-3,-3,1,1,1,1,1,12,-1,-1,-1,-1,-1,
               -1,-1,-1,-1,-1,
%X A143319 28,-27,-4,4,4,4,0,0,0,0,0,0
%N A143319 Triangle read by rows, A051731 * A143318; 1<=k<=n.
%C A143319 Left border = sigma(n), A000203.
%C A143319 Right border = mu(n) A008683.
%C A143319 Row sums = d(n), A000005.
%F A143319 Triangle read by rows, A051731 * A143318; 1<=k<=n
%e A143319 First few rows of the triangle =
%e A143319 1;
%e A143319 3, -1;
%e A143319 4, -1, -1;
%e A143319 7, -4, 0, 0;
%e A143319 6, -1, -1, -1, -1;
%e A143319 12, -8, -3, -1, -1, -1;
%e A143319 8, -1, -1, -1, -1, -1, -1;
%e A143319 ...
%Y A143319 Cf. A143318, A000005, A008683, A000203, A051731.
%Y A143319 Sequence in context: A130314 A127057 A143355 this_sequence A078011 A010285 
               A159878
%Y A143319 Adjacent sequences: A143316 A143317 A143318 this_sequence A143320 A143321 
               A143322
%K A143319 tabl,sign
%O A143319 1,2
%A A143319 Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 07 2008