n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 281: | \[281!!!+1\] | 64197767 × 47249745689<11> × [4111265622589262003963450999058099624362344502609732161987936851756398806435112817582846747082145890302763780433834321032635714811831339622313712519476191932062277879608527<172>] |