
Bobosharif S. answered 05/10/18
Tutor
4.4
(32)
PhD in Math, MS's in Calulus
Most probably Tomas is right but I think a few more members needed to see the precise pattern. For example, one can suggest the following as well:
7, 2(7+1), 7+1, 3(7+1+1), 7+2, 4(7+1+2), 7+3,...
as
n, 2(n+1), n+1, 3(n+2), n+2,...