n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
146: | \[146!!+1\] | 236701 × 339671 × 1620799417810458490793479<25> × 807066065621811687613957027<27> × 401431550441548057413565223107209568489648439028850824968275780007<66> |