https://arxiv.org/abs/1806.03856
By allowing the crew to evolve under a list of adaptive social engineering principles (namely yearly evaluations of the vessel population, offspring restrictions and breeding constraints), we show in this paper that it is possible to create and maintain a healthy population virtually indefinitely.
Too bad these bugmen don't account for planned parenthood, hypergamy and monkey-branching. In a real world scenario they'd be lucky if any babies were born at all, unless the bugmen on the ship went full sharia on the females.Under the set of parameters described in this publication, we find that a minimum crew of 98 people is necessary ensure a 100% success rate for a 6300-year space travel towards the closest telluric exoplanet known so far.