n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
183: | \[183!!+1\] | 2 × 19391 × 93290084747130041759121979452805816621591549662744591666004112234200567525175156886210967083867638435939165606094255385124725578563292579040075600517183107304589043<164> |