%I A127468
%S A127468 1,0,2,3,0,6,0,4,0,8,15,0,0,0,20,0,6,0,0,0,12,35,0,0,0,0,0,42,0,8,
%T A127468 0,16,0,0,0,32,9,0,36,0,0,0,0,0,54,0,30,0,0,0,0,0,0,0,40
%V A127468 1,0,2,-3,0,6,0,-4,0,8,-15,0,0,0,20,0,-6,0,0,0,12,-35,0,0,0,0,0,42,0,-8,
%W A127468 0,-16,0,0,0,32,-9,0,-36,0,0,0,0,0,54,0,-30,0,0,0,0,0,0,0,40
%N A127468 Triangle, row sums = n, right border = n*phi(n).
%C A127468 Right border = n*phi(n), A002618; row sums = n.
%F A127468 A126466 * A054525
%e A127468 First few rows of the triangle are:
%e A127468 1;
%e A127468 0, 2;
%e A127468 -3, 0, 6;
%e A127468 0, -4, 0, 8;
%e A127468 -15, 0, 0, 0, 20;
%e A127468 0, -6, 0, 0, 0, 12;
%e A127468 -35, 0, 0, 0, 0, 0, 42;
%e A127468 ...
%Y A127468 Cf. A127466, A054525, A002618.
%Y A127468 Sequence in context: A004179 A122830 A115562 this_sequence A058301 A097287 
               A089134
%Y A127468 Adjacent sequences: A127465 A127466 A127467 this_sequence A127469 A127470 
               A127471
%K A127468 tabl,uned,sign
%O A127468 1,3
%A A127468 Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 15 2007
%E A127468 Changed -0 to 0 (fifth term) Geoff Bailey (geoff(AT)maths.usyd.edu.au), 
               Mar 22 2009