%I #4 Feb 15 2022 02:10:33
%S 1,-2,2,-2,-1,3,-2,-4,2,4,-2,-7,-3,7,5,-2,-10,-12,4,14,6,-2,-13,-25,
%T -10,20,23,7,-2,-16,-42,-40,10,48,34,8,-2,-19,-63,-91,-35,63,91,47,9,
%U -2,-22,-88,-168,-140,28,168,152,62,10
%N Triangle, A097805 * A126615.
%C Row sums = (1, 0, 0, 0, ...).
%F A097805 * A126615 as infinite lower triangular matrices.
%e First few rows of the triangle:
%e 1;
%e -2, 2;
%e -2, -1, 3;
%e -2, -4, 2, 4;
%e -2, -7, -3, 7, 5;
%e -2, -10, -12, 4, 14, 6;
%e -2, -13, -25, -10, 20, 23, 7;
%e ...
%Y Cf. A097805, A126615.
%K tabl,sign
%O 1,2
%A _Gary W. Adamson_, Feb 09 2007