%I #9 Jun 18 2016 14:27:54
%S 1,1,4,1376,201675688
%N Normalized volume of alternating sign polytope A(n).
%H Roger E. Behrend, Vincent A. Knight, <a href="http://www.combinatorics.org/ojs/index.php/eljc/article/view/v14i1r83">Higher Spin Alternating sign matrices</a>, El. J. Combinat 14 (2007) #R83
%H K. Mészáros, A. H. Morales, J. Striker, <a href="http://arxiv.org/abs/1510.03357">On flow polytopes, order polytopes, and certain faces of the alternating sign matrix polytope</a>, arXiv preprint arXiv:1510.03357 [math.CO], 2015.
%K nonn,more
%O 1,3
%A _N. J. A. Sloane_, Jun 18 2016