Table 13.

Magic formulas for the icosahedron

	Icosahedron n=4
	Atoms	$\frac{10}{3}{n}^3+5n^2+\frac{11}{3}n+1,n\ge 1$
	Bonds	20n3+15n2+7n, n≥1
	cn=6	12, n≥1
	cn=8	30n−30, n≥1
	cn=9	10n2−30n+20, n≥1
	cn=12	$\frac{10}{3}{n}^3-5n^2+\frac{11}{3}n-1,n\ge 1$