n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 306: | \[306!!!!-1\] | 13978127 × 46371893928053363<17> × [328326729409175381178170440371092794506901351047699773206445197658121502649196003401592315119511525803760703275282944422617923862581099<135>] |