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%I #4 Dec 22 2018 16:19:02
%S 702,6048,12096,10080,4032,756,56
%N Number of (7-n)-faces of the 3_21 polytope.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/3_21_polytope">3_21 polytope</a>
%Y Cf. number of elements in uniform polytope with Coxeter symbol a_b: A321635 (1_22), A321636 (2_21), A321637 (1_32), A321638 (1_42), A321639 (2_31), A321640 (2_41), A321642 (4_21).
%K nonn,fini,full
%O 0,1
%A _Felix Fröhlich_, Dec 19 2018