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%I #19 Aug 18 2015 04:42:48
%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,6,12,25,44,79,128,208,318,
%T 483,704,1019,1430,1992,2712,3664,4862,6407,8320,10735,13686,17344,
%U 21760,27153,33592,41353,50532,61468,74290,89415,107008,127576,151332,178882,210496,246898,288420,335920,389808,451088,520260
%N G.f. for Ehrhart quasi-polynomials for hyperplane arrangements of type E_7.
%H Andreas Blass, Bruce E. Sagan, <a href="http://arxiv.org/abs/math/9801008">Characteristic and Ehrhart polynomials</a>, arXiv:math/9801008 [math.CO], 1998.
%H Andreas Blass, Bruce E. Sagan, <a href="http://dx.doi.org/10.1023/A:1008646303921">Characteristic and Ehrhart polynomials</a>, J. Algebraic Combin. 7 (1998), no. 2, 115--126. MR1609889 (99c:05204)
%F G.f.: x^18*f(1)^2*f(2)^3*f(3)^2*f(4) where f(k)=1/(1-x^k).
%F G.f.: x^18/((1-x)^2*(1-x^2)^3*(1-x^3)^2*(1-x^4)). - _Colin Barker_, Jul 22 2013
%K nonn,easy
%O 0,20
%A _N. J. A. Sloane_, Mar 25 2012