Odd Triangle Sum

Odd numbers can be arranged as a triangle: one number in the first row, two in the second, three in the third, and so on. Write a function row_sum_odd_numbers that takes a row number n and returns the sum of the numbers in that row. Row numbering starts from 1.

Примеры

Ввод

1

Вывод

1

Ввод

2

Вывод

8

Ввод

13

Вывод

2197

Нужно реализовать

def row_sum_odd_numbers(n: int) -> int:

Odd Triangle Sum

Примеры

Нужно реализовать

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