<image>Below is a series of "tree" diagrams drawn according to a certain pattern:

Upon observation, it can be found that: Diagram (2) has 2 more "branches" than Diagram (1), Diagram (3) has 5 more "branches" than Diagram (2), Diagram (4) has 10 more "branches" than Diagram (3). Following this pattern, Diagram (7) has ____ more "branches" than Diagram (6).