n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 243: | \[243!!!+1\] | 10428007 × 2223908243 × 866565052293169<15> × [127913100120006641072709336859334875883185869796940964930882896640240356913780708320168442025847780381242916381257036514950125629<129>] |