卑微萌新求下面图里的问题答案(｡･ω･｡)

Question

 

Answer 1

def sum(n):
    result = 0
    for i in range(1,n+1,2):
        result = result + (1/i)
    return result
n = int(input("请输入一个奇数："))
print(sum(n))