6, 12, 20, 30, ?

3, 18, 15, 24, 35,?....

25–K–8,   23–I–11,  21– G–14, 19–E–17, ?

1, 2, 3, 14, 5, 34, 7, ?, ?

2, 15, 4, 47, 7, 118, 11, ?,?

4, 10, 40, 190, 940, ? , 23440

7, 4, 5, 9,? , 52.5, 160.5

121, 114, 105, 94, 81, 66, (?)