Is a high tab_reloid worrying?

I just added a new table to a slony relication set. The new table seems
to have a really high tab_reloid value of 94,198,669

I'm using Slon 1.1.5 with pg 7.4.6 and 7.4.11 on unix

On the master I see (wcprogallery is the new table added to set 4)

tab_id|tab_reloid|tab_relname |tab_nspname|tab_set|tab_idxname
-------+----------+------------+-----------+-------+-------------------
4005| 18284|wccustomer |customer | 4|wccustomer_pkey
...
4035| 18858|wcrecommend |customer | 4|wcrecommend_pkey
4036| 94198669|wcprogallery|customer | 4|wcprogallery_pkey

On the slave I see

tab_id|tab_reloid|tab_relname |tab_nspname|tab_set|tab_idxname
-------+----------+------------+-----------+-------+-------------------
4005| 1671239|wccustomer |customer | 4|wccustomer_pkey
...
4035| 1671608|wcrecommend |customer | 4|wcrecommend_pkey
4036| 5741203|wcprogallery|customer | 4|wcprogallery_pkey

Is this something I should be worried about? Can I find out where all
the intermediate OIDs have gone?

I have around 70 tables and about 200 pgplsql functions in the database.

John