MailStream Plus What does the term mail sequence mean in the USPS Statement 3541?

The MailStream Plus's REPORT USPSSTMT parameter generates the USPS Statement Reports that can be submit to the USPS along with the presorted mail pieces the USPS may require all pages to have a Sequence number.  
To control this number use either RP INF, EP INF, or BAT INF parameter with a MSSEQ# subkeyword. The MSSEQ# subkeyword allows 
up to 10 characters for the numeric value.  

Using the RP INF, the parameter would look like this.  The Sequence number begins in position 35, and if desired can go to position 44.  

RP INF                     MSSEQ# 1234554321
UPDATED:  September 20, 2017