n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
265: | \[265!!!-1\] | 3 × 499 × 743321 × 1213645832881<13> × 6824219360461352463553<22> × 97463765632002208875120160817744095344005583254350970948578237100763866567277096839822938487272284479567726015187269155068869619563039<134> |