n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 177: | \[177!!-1\] | 25 × 9619201 × 9216766777<10> × 335797727263<12> × [640527330713530153012005555788666285647618076538514186398277102637300334859348052374045492868128550364826595383278977369960714293357<132>] |