A330555 Coordination sequence for 1-skeleton of icosidodecahedron.

1, 4, 8, 8, 8, 1

Offset

0,2

Comments

The King-Canfield reference shows how this polyhedron is involved in the solution of the quintic equation using elliptic functions.

Links

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

Tom Karzes, Polyhedron Coordination Sequences

R. B. King, and E. R. Canfield, Icosahedral symmetry and the quintic equation, Computers & Mathematics with Applications 24.3 (1992): 13-28. See Fig. 3.

N. J. A. Sloane, Vertices of icosidodecahedron labeled with distances from a base vertex (labeled 0), except for the antipode to the base vertex which is labeled A.

Crossrefs

Cf. A329500.

Sequence in context: A137209 A329506 A032566 * A200357 A201405 A331067

Adjacent sequences: A330552 A330553 A330554 * A330556 A330557 A330558

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Dec 24 2019

Status

approved