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A321635 Number of (5-n)-faces of the 1_22 polytope. 7
54, 702, 2160, 2160, 720, 72 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

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

Wikipedia, 1_22 polytope

EXAMPLE

For n = 1: The 1_22 polytope has 702 4-faces ((5-1)-faces), namely 270 16-cells and 432 5-cells, so a(1) = 270 + 432 = 702.

CROSSREFS

Cf. number of elements in uniform polytope with Coxeter symbol a_b: A321636 (2_21), A321637 (1_32), A321638 (1_42), A321639 (2_31), A321640 (2_41), A321641 (3_21), A321642 (4_21).

Sequence in context: A253006 A128961 A218130 * A090835 A069980 A139178

Adjacent sequences:  A321632 A321633 A321634 * A321636 A321637 A321638

KEYWORD

nonn,fini,full

AUTHOR

Felix Fröhlich, Nov 15 2018

STATUS

approved

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Last modified April 11 02:02 EDT 2021. Contains 342886 sequences. (Running on oeis4.)