What are the easy numbers of plum blossoms besides eighteen?

There are only 18 plum blossom books.

The Book of Changes of Plum Blossoms lists eighteen occupations, namely, weather occupation, personnel occupation, family occupation, housing occupation, marriage occupation, childbearing occupation, catering occupation, seeking fame, seeking wealth occupation, trading occupation, tourism occupation, pedestrian occupation, audience occupation, lost property occupation, disease occupation, public litigation occupation and grave occupation. Plum blossoms are easy to classify. One of the ways to share plum blossoms is to share various specific things by using the principles of body use, five elements, image and the ratio of birth to punishment. "General affairs, more than 18? However, these 18 accounts are the most important things, and residents can follow the analogy. " ("plum blossoms are good? Actually, it's ridiculous