n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 249: | \[249!!!!+1\] | 2 × 929 × 1669 × [669854874809758690870280292731463376264252365592536037268056446721296818455198267094424915380281731154888843490170063<117>] |