- solids.
Icositrigonal pyramids are a type of cone with an
icositrigon as a base, with 24 faces, 46 edges, and 24 vertices.
Regular icositrigonal pyramids...
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Icosidigonal 1/2(20n2 − 18n) 1 22 63 124 205 306 427 568 729 910 A051874 23
Icositrigonal 1/2(21n2 − 19n) 1 23 66 130 215 321 448 596 765 955 A051875 24 Icositetragonal...