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A321636 Number of (5-n)-faces of the 2_21 polytope. 7
99, 648, 1080, 720, 216, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..5.

Wikipedia, 2_21 polytope

CROSSREFS

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).

Sequence in context: A273187 A322830 A212779 * A154359 A185499 A061366

Adjacent sequences:  A321633 A321634 A321635 * A321637 A321638 A321639

KEYWORD

nonn,fini,full

AUTHOR

Felix Fröhlich, Nov 24 2018

STATUS

approved

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Last modified January 18 20:41 EST 2022. Contains 350455 sequences. (Running on oeis4.)