n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 257: | \[257!!!+1\] | 238723 × 21727289 × 29457961598927<14> × [2854806725876722656705332843186832165483815995412497806484345797155201249199741145998059268303874894184587207705018614888771220461783912288649229<145>] |