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%I #3 Mar 30 2012 18:51:58
%S -1,1,-1,-19,11,-19,27,-11,11,-27,-863,271,-191,271,-863,1375,-351,
%T 191,-191,351,-1375,-33953,7297,-3233,2497,-3233,7297,-33953
%N Triangle of subsequences of A140825 with a mirror symmetry.
%C The triangle shows A140825(3) in the first row and fills the n-th row by successively skipping two terms of A140825 and taking the next n terms. The absolute values of the triangle generated this way are symmetric with respect to mirror-operation at the row centers. We are essentially reading numerators down columns of the triangle in A140825, a(i,j), 0<=i<=j-2.
%e The triangle starts:
%e -1;
%e 1, -1;
%e -19, 11, -19;
%e 27, -11, 11, -27;
%K sign,tabl,less
%O 0,4
%A _Paul Curtz_, Jul 31 2008
%E Edited by _R. J. Mathar_, Aug 12 2008
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