The number of regions into which space can be divided by Spheres is

giving 2, 4, 8, 16, 30, 52, 84, ... (Sloane's A046127).

**References**

Sloane, N. J. A. Sequence A046127 in ``The On-Line Version of the Encyclopedia of Integer Sequences.'' http://www.research.att.com/~njas/sequences/eisonline.html.

© 1996-9

1999-05-26