Function sequence( n )

Description:
Returns an integer array of a given length with the values 0, 1, 2, ....
Parameters:
n (integer)
length of array
Return Value (array of integer):
n-element array, (0, 1, 2, ... n-1)
Example:
sequence(4) = (0, 1, 2, 3)
Signature:
int[] sequence(int)