python method for calculating factorial sums (1!+2!+3!+... +n!)

Method 1: Use while loop to calculate

n = int(input())
jie = 1
sum = 0
i = 1
while n >= i:
  jie = jie * i
  sum = sum + jie
  i = i + 1
print(sum)

Method 2: Summing by calling the factorial method using a recursive function (where the value of n is between 1 and 40)

def jie(n):
  if n == 1:
    return 1
  else:
    return n*jie(n-1)
n = int(input())
sum = 0
if n < 1 or n > 40:
  print("Please re-enter the data.")
else:
  for i in range(1,n+1):
    sum = sum + jie(i)
  print(sum)

This above python method to calculate factorial sum (1!+2!+3!+... +n!) is all that I have shared with you.