n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 222: | \[222!!+1\] | 157 × 727 × 3694044134609<13> × 1219769201414136467<19> × [8899310009600629824830086406175856560922164526747553622943702846931954731207217274932694302892268371495615657972916861773558287241763944389508127987390801184178456674527369514353<178>] |