Does multi-db distribute blog tables randomly across the 4096 databases ?

Hi,
I have setup 4096 DBs using MultiDB. I wanted to know how new blog/site tables are distributed across the 4096 DBs.
I created 5 blogs/site in my multisite install and tried searching for tables of those 5 blogs in the 1st few databases. But I couldnt find anything in the 1st few DBs. So, either the multi-db install is not working correctly or the blog tables are being randomly distributed.

Also, is there a way to find: in which database does the table of any given blog/site (say blog id = 3)