n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 299: | \[299!!!!-1\] | 2 × 1401268247 × 20896419301<11> × 6505562840319293<16> × 100434509319496430196255081586687647836487833924928377<54> × 256288259265601427089904268663689424113169890042207161330148980661<66> |