Sequences: How do I set a sequence value?

Given a sequence n created by creat sequence, how do I set n so that
nextval() will return a specific number on its next call?

--
David Steuber | "Are you now, or have you ever been, a member
NRA Member    | of the NRA?" --- HUAC, 2004

Happiness is a SAAB Gripen <http://www.gripen.saab.se/> in the
garage, an FN-FAL in the safe, and an HK P7M8 on the hip.