Hard sphere: virial coefficients

Virial / Dimension	2	3	4	5	6	7	8
$B_3/B_2^2$	0.782004...	0.625	0.506340...	0.414063...	0.340941...	0.282227...	0.234614...
$B_4/B_2^3$
$B_5/B_2^4$
$B_6/B_2^5$
$B_7/B_2^6$
$B_8/B_2^7$
$B_9/B_2^8$
$B_{1}0/B_2^9$

Virial coefficients of hard spheres and hard disks can be found in the following references.

References

1. Stanislav Labík, Jirí Kolafa, and Anatol Malijevský, "Virial coefficients of hard spheres and hard disks up to the ninth", Physical Review E 71 pp. 021105 (2005)
2. Nathan Clisby and Barry M. McCoy "Ninth and Tenth Order Virial Coefficients for Hard Spheres in D Dimensions", Journal of Statistical Physics 122 pp. 15-57 (2006)