n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
179: | \[179!!!!-1\] | 2 × 10453 × 60156891229<11> × 70982684401<11> × 7102959722959<13> × 73429970525928348596474775573430822394592739<44> |