Observe the number of the following column in order, according to its arrangement. Please write the following three numbers and the nth number (1) 1,3,5,7,9, (), (), (). The nth number is () (2) 3,5,7,9,11, (), (), (). The nth number is () (3) - 3, - 1,1,3,5, (), (), (), the nth number is () (4) 5,3,1, - 1, - 3, (), (), (). The nth number is ()

Observe the number of the following column in order, according to its arrangement. Please write the following three numbers and the nth number (1) 1,3,5,7,9, (), (), (). The nth number is () (2) 3,5,7,9,11, (), (), (). The nth number is () (3) - 3, - 1,1,3,5, (), (), (), the nth number is () (4) 5,3,1, - 1, - 3, (), (), (). The nth number is ()

(1) 1,3,5,7,9, (), (), (). The nth number is (2n-1)
2) The nth number is (2n + 1)
(3) - 3, - 1,1,3,5, (), (), (). The nth number is (2n-5)
(4) 5,3,1, - 1, - 3, (), (), (). The nth number is (7-2n)