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%I #9 Jul 19 2015 10:49:14
%S 1,0,0,1,0,1,0,1,1,1,1,1,2,1,2,1,3,1,2,2,2,3,1,3,2,3,1,3,2,2,2,1,3,1,
%T 2,1,2,1,1,1,1,1,0,1,0,1,0,0,1
%N Expansion of the polynomial (1+x^3)*(1+x^5)*(1+x^7)*(1+x^9)*(1+x^11)*(1+x^13).
%C This is the Poincaré polynomial for the Lie group A_6.
%D Borel, A. and Chevalley, C., The Betti numbers of the exceptional groups, Mem. Amer. Math. Soc. 1955, no. 14, pp 1-9.
%t CoefficientList[Series[Times@@(x^Range[3,13,2]+1),{x,0,50}],x] (* _Harvey P. Dale_, Nov 30 2013 *)
%Y A row of A142724.
%K nonn,fini,full
%O 0,13
%A _N. J. A. Sloane_, Dec 25 2010
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