Part 3 of Ralph Griswold's series on drawdown automata, which are cellular-automaton-style programs for generating weave-draft patterns. It defines pattern sequences and related terms: successor, predecessor, outer, terminal, cycle and lead-in patterns. It shows how the number of possible patterns grows with automaton size, with illustrated cycle and lead-in sequences and a state-transition diagram of 41 patterns. It ends by noting that rules producing long sequences are the best candidates for weave design, to be explored in the next part.