Find the alternative number to replace the question mark 3, 10, 101, ?

Pattern: each term equals the square of the previous term plus 1.

1. Start with 3: 3^2 + 1 = 9 + 1 = 10.

2. Next: 10^2 + 1 = 100 + 1 = 101.

3. Next: 101^2 + 1 = 10201 + 1 = 10202.

Therefore the missing term is 10202.