n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 170: | \[170!!+1\] | 6043 × 69235510417<11> × 145358881220907401661469838970371<33> × 498158899361571523857055317634429992058141<42> × 359717504582512847662091515530183528931280808162649086488574559061<66> |