There are a couple of other questions that get CLOSE to this one, but mine is much more basic. The other estimates are for colony size or country size, and these take into account technology, accidents, disasters, etc. I want to know simply how many men and women, assuming an equal ratio of men to women and monogamy. I want to know how many people there needs to be to;
A) roughly maintain their numbers, growing slightly, but not more than 10%/year (I know the answers will be rough estimates)
B) not produce genetic decay due to limited genetic variance.