1,3,11,67,?(what will be the no. at the place of "?")?

Answer 1

629

Sequence is x^(x-1) + (x-1)
for values of x:
1^(1-1) + (1-1) = 1
2^(2-1) + (2-1) = 3
3^(3-1) + (3-1) = 11
4^(4-1) + (4-1) = 67
5^(5-1) + (5-1) = 629
etc.
.

Answer 2

535.

1 * 2 + 1 = 3

3 * 4 - 1 = 11

11 * 6 + 1 = 67

so the next number following this pattern would be

67 * 8 - 1 = 535

Answer 3

111

Answer 4

5,896