Задание 5

a = [[1] * 6 for i in range(6)]

width = 3
def mystr(number):
    return ' ' * (width - len(str(number))) + str(number)

for i in range(1,6):
    for j in range(1,6):
        a[i][j] = a[i-1][j] + a[i][j-1]
for k in range(len(a)):
    print(' '.join(map(mystr, (a[k]))))