n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 178: | \[178!!+1\] | 2539 × 1619861 × 7535961700921<13> × 1968086907750539<16> × [167509518184965361389631401950910571796960757504625056763989076636058043855642818722565118085725397904969542232955583249329901<126>] |