n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 163: | \[163!!-1\] | 2 × 9187 × [7782849518876487225571716506905987544580312064990139482937260972156318380174497946164356167201468323888235897332842444412370674703257950940251<142>] |