PYTHON ONLY PLEASE FOLLOW DIRECTIONS SO I CAN USE AS REFERENCE TO LEARN

Problem 5. (Pascal's Triangle) Pascal's triangle P is a triangular array with n+1 rows, each listing the coefficients of the binomial expansion (z y), where 0 sis n. For example, P is the triangular array 1 1 1 2 1 1 3 3 1 1 4 6 4 1 The term Pn(i,j) is calculated as Pa(i for all i. Write a program pascal.py that takes an integer n as command-line argument and writes Pn. 1 of 2 python pascal. py 10 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1. 16 15 20 15 6 1 1 7 21 35 35 217 1 18 28 56 70 56 28 8 1 19 36 84 126 126 84 36 9 1 1 10 455 120 210 252 210 120 45 10 1 pascal.py: takes an integer n as command-line argument and writes Pascal's triangle Pn. import std array import stdio import sys Get n from command line, as an int. Construct a 2D ragged list a of integers. The list must have n 1 rows, with the ith (0 i n) row a Cij having i 1 elements each initialized to 1. for i in range a 1 Fill the ragged list a using the formula for Pascal's triangle a [i] [j ali 11 11 ali Where 0 i n and 1 j