n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
273: | \[273!!!-1\] | 733 × 131849 × 270498121 × 132298237184637847<18> × 1023557481005756025501674627436800441650399299987478632127485350077392922737497731167224005221929708843914699506385358324875667822800963784540120130781<151> |