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  1. n = int(input())
  2. factorial = 1
  3. for x in range(1, 1 + n//2):
  4. 	factorial *= 4*x**2 + (-1)**(n-1) * 2*x
  5. print(factorial)
Success #stdin #stdout 0.07s 14184KB
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https://ideone.com/O98gcl
language:
Python 3 (python  3.12)
created:
7 days ago
visibility:
public

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