What number comes next in the sequence 2 2 4 12 16 80?

Answer 1

The general term a(n) of the sequence is:

a(n) = a(n - 1) * (n - 1), if n is even

a(n) = a(n - 1) + (n - 1), if n is odd

and a(1) = 2, of course.

So the next term in the sequence would be 86

a(7) = a(6) + 6 = 80 + 6 = 86