Sequences Vocabulary composes first position of has sequence has first member has first position sequence has index origin member has index origin position sequence has last member has last position sequence position has member has sequence position sequence position is just before next sequence position is equal to last position of member participates in sequence sequence position1 precedes sequence position2 precedes or equals next sequence position succeeds sequence position has index in sequence has index origin consecutive sequence finite sequence 1 1 1 1 first position 1 indefinite sequence last position 1 member member has index in sequence 1 1 previous member is just before thing in unique sequence 1 1 1 member1 precedes member2 in unique sequence 1 1 1 next member is next after thing in unique sequence 1 1 1 regular sequence sequence 1 1 1 1 1 1 sequence position 1 unique sequence