Table 3 Magic formulas for the bcc octahedron

Atoms

\(\frac {8}{3}n^{3}+6n^{2}+\frac {16}{3}n+1,~n\ge 1\)

Bonds

\(\frac {32}{3}n^{3}+12n^{2}+\frac {28}{3}n,~n\ge 1\)

cn=4

4n²+4n+6, n≥1

cn=6

12n−12, n≥1

cn=7

8n²−16n+8, n≥1

bcc octahedron n=3

cn=8

\(\frac {8}{3}n^{3}-6n^{2}+\frac {16}{3}n-1,~n\ge {1}\)