n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
187: | \[187!!+1\] | 22 × 3221 × 49379734018891<14> × 93462004333166333<17> × 2104963025542712040989878459265201516585399971628945354307992516982300609577867991833825569025292645483397457251199871758017936471993346513<139> |