I don't know if I'm correct....and it's kinda hard to explain but...
For 17 to get to 24, you add 7.
For 24 to get to 45, you add 7x3=21
For 45 to get to 108, you add 7x9=63
I think the next two numbers add by MAYBE 105 and then 147....
Which would be 213 and then 350
I'm sorry if dat's wrong.....I may have just marked up your work. XD