1.
3, 6, 10, 15, 21, ?, 36
4.
1, 7, 3, 14, 6, 21, 10, 28, ?
5.
2, 5, 9, 8, 11, 15, 14, 17, 21, ?
6.
4, 196, 16, 144, 36, 100, 64, ?
8.
1, 6, 15, ?, 45, 66, 91
11.
2, 1, 4, 3, 6, 5, 8, ?
13.
0, 3, 8, 15, 24, ?, 48
14.
1, 2, 3, 2, 3, 5, 3, 4, 7, 4, 5, ?
17.
10, 18, 28, 40, 54, 70, ?
18.
48, 24, 96, 48, 192, ?