Create a function that returns the nth row of Pascal's triangle:
pascal_row(0) ➞ [1]
pascal_row(1) ➞ [1, 1]
pascal_row(5) ➞ [1, 5, 10, 10, 5, 1]
pascal_row(10) ➞ [1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 1]
Input will include large numbers (the formula n choose k, or n!/(k!*(n-k)!) won't do).