def yang(ma): n=1 while n <= ma: m = 1 l = [] while m <= n: if m == 1 or m == n: l.append(1) else: l.append(cl[m-2]+cl[m-1]) m = m + 1 cl = l[:] yield(l) n = n + 1 return "done" for i in yang(10): print(i)