Which number should come next in the series 1, 2, 3, 10, _

The logic for the given series is the square of the appearing number and addition of 1 at first position and subtraction of 1 at second position. This simply means that - 1^2 + 1 = 2 2^2 - 1 = 3 3^2 + 1 = 10 Similarly, the number after 10 is - 10^2 - 1 = 99