n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
214: | \[214!!!!-1\] | 229 × 313 × 563 × 18379 × 170689 × 10223273861<11> × 5877233788241922518706914573<28> × 754400299382687185458898001396947682597761412443<48> |