Sequences (nth term)

Find the nth term:
1, 5, 9, 13, 17

Find the nth term:
1, 4, 7, 10, 13

Find the nth term:
2, 6, 12, 20, 30

Find the nth term:
1, 2, 7, 16, 17

Find the nth term:
4, 10, 16, 22, 28

Find the nth term:
5, 3, 1, -1, -3

Find the nth term:
2, 8, 18, 32, 50

Find the nth term:
2, 5, 10, 17, 26

Find the nth term:
4, 7, 12, 19, 28

Find the nth term:
7, 13, 23, 37, 55