Explain answer please (262144)

Question

def f(x):
if x<=1:
return 1
else:
x=x**f(x-1)
return x

print(f(4))

Answer 1

** means exponent, so you are doing a recursion with bases, until the exponent number is 1 and summing all the results

Answer 2

f(1) =1
f(2) = 2**f(1) = 2**1 = 2
f(3) = 3**f(2) = 3**2 = 9
f(4) = 4**f(3) = 4**9 = 262144