%I #8 Feb 12 2019 09:15:22
%S 1,0,1,0,3,8,3,0,1,8,15,8,1,0,1,16,70,112,70,16,1,0,3,80,630,2016,
%T 2940,2016,630,80,3,0,1,40,495,2640,6930,9504,6930,2640,495,40,1
%N Triangle read by rows: coefficients of the polynomials A_{2,4}(n,k).
%H J. Agapito, <a href="https://dx.doi.org/10.1016/j.laa.2014.03.018">On symmetric polynomials with only real zeros and nonnegative gamma-vectors</a>, Linear Algebra and its Applications, Volume 451, 15 June 2014, Pages 260-289.
%e Triangle begins:
%e 1,
%e 0,1,
%e 0,3,8,3,
%e 0,1,8,15,8,1,
%e 0,1,16,70,112,70,16,1,
%e 0,3,80,630,2016,2940,2016,630,80,3,
%e 0,1,40,495,2640,6930,9504,6930,2640,495,40,1,
%e ...
%Y Cf. A245167, A245168, A245169, A245170, A245172, A245173.
%K nonn,tabf,more
%O 0,5
%A _N. J. A. Sloane_, Jul 13 2014