A series of numbers arranged regularly are: 2, 3, 10, 15, 26, 35 According to this rule, what is the seventh number in this column?

A series of numbers arranged regularly are: 2, 3, 10, 15, 26, 35 According to this rule, what is the seventh number in this column?

The seventh number is 7 ^ 2 + 1 = 50