n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
216: | \[216!!!-1\] | 1118317 × 27403379 × 55996263571<11> × 7816305247992112569101<22> × 102848181247294035799662959503592920524165200780306522688265062219982777523931584368206930383<93> |