dropping sequence with the table

How to drop a table and it's sequence(s) automaticaly ?
Is there any way to find all sequence of a table with a query (without \d) ?

We should have this functionality, but do not yet.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026