Format: /SEQUENCE[:init:incr]

 When you use the /SEQUENCE option, the output file is in VFC (variable
 with fixed control) format, and line numbers are written in the control
 field. The values of both 'init' and 'incr' must be less than 65536.

 If you set init and incr, the file is renumbered starting with the number
 you choose for init, and the lines are incremented by the number you
 choose for incr.  Otherwise, the line numbers assigned by EDT are written.
 These line numbers are truncated to integers and taken modulo 100000,
 with a maximum value of 65535.