n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 309: | \[309!!!!!-1\] | 5 × [51284975096392370295423251754915179238595903048316999130760338222005842574175933341527507308072136737293818804522487259612787507<128>] |