Error while restoring tables from pgdump

Hai,
I have taken pgdump of a table which contains "serial" datatype.  When i
try to populate it into another database the sequence is not created.

Why it is so?

Please help me,
Ramesh

I took pgdump of the table using
pg_dump olddb -t grms_filter_table_list > tables.pgdump

i restored the table in another database using
cat tables.pgdump | psql newdb

i have the table in new database whose str is as follows
                                Table "grms_filter_table_list"
 Attribute  |    Type     |                             Modifier
------------+-------------+-------------------------------------------------------------------

 table_id   | integer     | not null default
nextval('grms_filter_table__table_id_seq'::text)
 table_name | varchar(50) |
 disp_as    | varchar(50) |
Index: grms_filter_table__table_id_key

when i try to insert new record, i get following error
ERROR:  Relation 'grms_filter_table__table_id_seq' does not exist



Please advice me as how to take the pgdump with serial data type (ie
table which has sequence)

Thanks in advance
Ramesh HR