n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 325: | \[325!!!!+1\] | 2 × 377564450899<12> × 356751405269191067383<21> × [417177238588315218304633340517979663986587795087181751315210913342075543505105253011102946518821301165292592703698245940114929351566413639<138>] |