Write the first five terms of the geometric sequence with the given first term, a, , and common ratio, r. a1 = 16, r= 7 The first term is (Type an integer or a simplified fraction.) The second term is (Type an integer or a simplified fraction.) The third term is (Type an integer or a simplified fraction.) The fourth term is (Type an integer or a simplified fraction.) The fifth term is (Type an integer or a simplified fraction.)