cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-4 of 4 results.

A092536 Sorted numbers of edges in the Archimedean polyhedra.

Original entry on oeis.org

18, 24, 36, 36, 48, 60, 60, 72, 90, 90, 120, 150, 180
Offset: 1

Views

Author

Eric W. Weisstein, Feb 26 2004

Keywords

Comments

Prisms and antiprisms are excluded.
Ordering is truncated tetrahedron, cuboctahedron, truncated cube = truncated octahedron, small rhombicuboctahedron, icosidodecahedron = snub cube, great rhombicuboctahedron, truncated dodecahedron = truncated icosahedron, small rhombicosidodecahedron, snub dodecahedron, great rhombicosidodecahedron.
Also the sorted number of edges of the Catalan polyhedra, the duals of the Archimedean polyhedra. - Felix Fröhlich, Mar 05 2018

Crossrefs

A092537 Sorted numbers of faces in the Archimedean polyhedra.

Original entry on oeis.org

8, 14, 14, 14, 26, 26, 32, 32, 32, 38, 62, 62, 92
Offset: 1

Views

Author

Eric W. Weisstein, Feb 26 2004

Keywords

Comments

Prisms and antiprisms are excluded.
Ordering is truncated tetrahedron, cuboctahedron = truncated cube = truncated octahedron, great rhombicuboctahedron = small rhombicuboctahedron, icosidodecahedron = truncated dodecahedron = truncated icosahedron, snub cube, great rhombicosidodecahedron = small rhombicosidodecahedron, snub dodecahedron.
Also the sorted number of vertices of the Catalan polyhedra, the duals of the Archimedean polyhedra. - Felix Fröhlich, Mar 05 2018

Crossrefs

A299114 Number of sides of a face of an Archimedean solid.

Original entry on oeis.org

3, 4, 5, 6, 8, 10
Offset: 1

Views

Author

Jonathan Sondow, Feb 02 2018

Keywords

Comments

Values of n for which the regular n-gon is a face of some Archimedean solid.
Remarkably, the same is true for Johnson solids. Indeed, before Johnson (1966) and Zalgaller (1967) classified the 92 Johnson solids, Grünbaum and Johnson (1965) proved that the only polygons that occur as faces of a non-uniform regular-faced convex polyhedron (i.e., a Johnson solid) are triangles, squares, pentagons, hexagons, octagons, and decagons.

Crossrefs

A325176 Numbers k such that an Archimedean 4-polytope with k vertices exists.

Original entry on oeis.org

5, 8, 10, 16, 20, 24, 30, 32, 48, 60, 64, 96, 100, 120, 144, 192, 288, 384, 576, 600, 720, 1152, 1200, 1440, 2400, 3600, 7200, 14400
Offset: 1

Views

Author

Felix Fröhlich, Sep 05 2019

Keywords

Comments

Also, numbers n such that a Catalan 4-polytope (dual of an Archimedean 4-polytope) with n cells (3-D facets) exists.

Examples

			Vertices |  Example 4-polytope
         |  (Schläfli symbol)
----------------------------------------
      5  | {3,3,3}
      8  | {3,3,4}
     10  | r{3,3,3}
     16  | {4,3,3}
     20  | t{3,3,3}
     24  | {3,4,3}
     30  | rr{3,3,3}
     32  | r{4,3,3}
     48  | t{3,3,4}
     60  | tr{3,3,3}
     64  | t{4,3,3}
     96  | rr{4,3,3}
    100  | grand antiprism
    120  | {3,3,5}
    144  | t_0,3{3,4,3}
    192  | t{3,4,3}
    288  | rr{3,4,3}
    384  | t_0,1,2,3{3,3,4}
    576  | tr{3,4,3}
    600  | {5,3,3}
    720  | r{3,3,5}
   1152  | t_0,1,2,3{3,4,3}
   1200  | r{5,3,3}
   1440  | t{3,3,5}
   2400  | t{5,3,3}
   3600  | rr{5,3,3}
   7200  | tr{5,3,3}
  14400  | t_0,1,2,3{5,3,3}
		

References

  • J. H. Conway, H. Burgiel and Chaim Goodman-Strauss, The Symmetries of Things, A K Peters, Ltd., 2008, pp. 389-403, ISBN 978-1-56881-220-5.

Crossrefs

Cf. A092538.
Showing 1-4 of 4 results.