n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
220: | \[220!!!+1\] | 1499 × 28652547708630536356207<23> × 29649238242573796595179187753031600403<38> × 1113717605159915498027570699559328431695891855560114521729675132027635346541519<79> |