<image> Observing the following figures, we can find: in the 1st figure there is 1 square, in the 2nd figure there are 5 squares, and following this pattern...

(1) In the 3rd figure, there are ______ squares;
(2) The 4th figure has ______ more squares than the 3rd figure;
(3) The \(n^{th}\) figure has ______ more squares than the previous figure (expressed as a formula containing \(n\));
(4) According to the pattern, is there a figure where the number of squares increases by 2015 compared to the previous figure? Why?