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A321642 Number of (7-n)-faces of the 4_21 polytope. 7
19440, 207360, 483840, 483840, 241920, 60480, 6720, 240 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..7.

Wikipedia, 4_21 polytope

CROSSREFS

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), A321641 (3_21).

Sequence in context: A252901 A126721 A323558 * A204592 A140930 A254486

Adjacent sequences:  A321639 A321640 A321641 * A321643 A321644 A321645

KEYWORD

nonn,fini,full

AUTHOR

Felix Fröhlich, Dec 19 2018

STATUS

approved

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Last modified January 22 07:31 EST 2022. Contains 350481 sequences. (Running on oeis4.)