This integer is simply a unique row number assigned to each developer listed in this now-defunct 'Easter egg' table, which the vendor built into the RoboExec agent purely as an in-joke, not a real management feature. It exists so that each entry in the tiny developer table can be indexed and retrieved individually, the same way any other SNMP table uses an index column. For instance, index 1 might correspond to the first name entered by the Pilgrim project team when they added this hidden tribute to their MIB.