n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
211: | \[211!!!+1\] | 188904281 × 2952033919 × 35076521083743413<17> × 5048071116722032542139406181124086500792996101279<49> × 1405892754436445649832993253283576730298746624854917<52> |