n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
234: | \[234!!!!-1\] | 72383 × 530641 × 711526290176419<15> × 10764919027335119<17> × 2515109872775902823852291828483<31> × 4565054619918974556111650860211642157353191<43> |