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Returns the next sequential number. The first number returned is the initial value set as a parameter in this function. After that, the count is incremented by one and returned.
|initial_value_number||Optional starting value for the sequence number|
Returns 1 the first time the function is called if the initial_value_number is not specified.
The initial value is reset every time the Map is run.
Returns: 1 the first time the function is called, and 2 the next time it is called.
SEQNUM( 123 )
Returns: 123 the first time the function is called, and 124 the next time it is called.