n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 212: | \[212!!+1\] | 107 × 149 × 211 × 78277 × 269595899 × 667546199 × [196240745863915799320018730317616652211502784042037126486341676084094755724759034483390114130684867404603749876654225256592496955468755233745839261224182028481998964464787981<174>] |