6. Write a function with one positive int parameter called n. The function will write 2An- 1 integers (where is the exponentiation operation). Here are the patterns of output for various values of n: n= 1: Output is: 1 n 2: Output is: 1 2 1 n-3: Output is: 1 213 121 n-4: Output is: 1 2 1312141213121 And so on. Note that the output for n always consists of the output for n-1, followed by n itself, followed by a second copy of the output for n-1. (10 points)