Table of n, a(n) for n=1..5.
S. Alejandre, Studying Polyhedra
P. Alfeld, The Platonic Solids
D. M. Cahir, Platonic Solids
M. Chaplin, The Platonic Solids
D. Eberly, Platonic Solids
T. Eveilleau, Les solides de Platon
W. Fendt, The Platonic Solids (in German)
F. Fernandez, Platonic Solids
Z. Fiedorowicz, VE+F=2
D. A. Fontaine, The Five Platonic Solids
FreeDictionary.com, Platonic solid
Polyhedra.mathmos.net, The Platonic Solids
E. S. Rowland, Regular Polyhedra
A. Ruediger, The Platonic Solids
L. Stemkoski, Platonic Solids
G. Tulloue, Plato's Polyhedra
University of St. Andrews, The five Platonic solids
Utah State University, Platonic Solids
Visual Geometry Pages, Platonic Solids
Eric Weisstein's World of Mathematics, Platonic Solid.
D. Wells, Regular Polyhedra
Wolfram Research, Polyhedron Explorer
W. Wu, The Platonic Solids
Anonymous, Polyhedra
Anonymous, The Platonic Solids
