Next in sequence 126421806

Answer 1

This has already been answered:

The Answer is 3,263,422

n*(n+1) = x (where n equals the previous x)

1*(1+1) = 2

2*(2+1) = 6

6*(6+1) = 42

42*(42+1) = 1806

1806*(1806 +1) = 3263442

Each term is being squared then added plus the original amount.

So the second term will be equal to the first term squared, then add the first term.

In an equation (n^2) + n , where n is the previous term.

So the next term is 3,263,442