last lab

labPython/lab2/TheTwo16.py

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+# print("Введите число N")
+# N = int(input())
+# 
+# def fac(x: int): # факториал числа
+    # return _fac (x*2, x)
+# 
+# def  _fac(x: int, y: int):
+    # if x > y:
+        # return (y * _fac(x, y+1))
+    # else:
+        # return y
+    # 
+# x = 0
+# if N <= 12:
+    # for i in range(1, N+1):
+        # step = i**i
+        # factorial = fac(i)
+        # x += step / factorial
+    # print(x)
+
+N = int(input())
+s = 0
+for i in range(1, N + 1):
+    p = 1
+    for j in range(i, 2 * i + 1):
+        p *= j
+    s += i**2 / p
+    
+print(s)