From the analysis of the top oligomers from the GA, two monomers have been shown to be ubiquitous, 35 and 642 (Figure ). This further demonstrates that the stability of the triplet ground-state is frequently controlled by one of the two monomers in the oligomer. That is, some monomers induce a small HOMO-LUMO gap in many of the oligomers they are found in when paired with many different monomers, and we expect these monomers to be more common in the GA. To find which monomers in the set exhibit similar properties, a histogram of the number of occurrences of each monomer in all GA runs was constructed (Figure Top). A higher number of instances in the GA would suggest a higher survivable rate throughout the GA cycle, due to it contributing to a small HOMO-LUMO gap relative to the rest of the population.