Basically , you need to post once ever 360 seconds for the first few weeks.
By the time you reach Jr. Member , you will only occasionally blocked , and once you finally reach Member, you will not notice it unless you spam.

I'd suggest you simply copy each message before posting and try again after some time whenever you fail to post.
The transition will happen naturally , you don't need to really look at all the formulae.

Another benefit other than stopping spambots is that it teaches Newbies to post less often.