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Encyclopedia of Combinatorial Polytope Sequences



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Multiplihedron

(0, 6, 2, 5)

Multiplihedra J, M [arxiv] (Forcey)
Step 1 Biassociahedra K^2_n [arxiv](M. Markl)
(in low dimensions) trihomomorphism axioms (pasting diagrams) in tricategories [books] (Gordon, Power, Street)
Dimensions:
0, 1, 2, 3, ... n
Number of Vertices in nth polytope:
1, 2, 6, 21, 80, ... Catalan transform of Catalan numbers [ OEIS A121988]
Number of Facets:
0, 2, 6, 13, 25, 46, ... n(n + 1)/2+ 2^n - 1. [ OEIS ?]
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