Explore the square of law 1 + 3 = 4 = 2, 1 + 3 + 5 = 9 = 3, 1 + 3 + 5 + 7 = 16 = 4. What is the law?

Explore the square of law 1 + 3 = 4 = 2, 1 + 3 + 5 = 9 = 3, 1 + 3 + 5 + 7 = 16 = 4. What is the law?

The rule is: starting from 1, the sum of consecutive odd numbers is equal to the square of the odd numbers