n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 243: | \[243!!!-1\] | 163 × 23059 × 2264719477435087<16> × 5520201265003096390229694167<28> × 22313159411568763762529296888022724971<38> × 2451748421195062001119392321698423872991051176146391171504428158064646733<73> |