The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #5 Dec 19 2018 14:49:37
%S 99,648,1080,720,216,27
%N Number of (5-n)-faces of the 2_21 polytope.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/2_21_polytope">2_21 polytope</a>
%Y Cf. number of elements in uniform polytope with Coxeter symbol a_b: A321635 (1_22), A321637 (1_32), A321638 (1_42), A321639 (2_31), A321640 (2_41), A321641 (3_21), A321642 (4_21).
%K nonn,fini,full
%O 0,1
%A _Felix Fröhlich_, Nov 24 2018