n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 134: | \[134!!+1\] | 9931 × 12743 × 4196252510761<13> × 675154186962556757573029751212036102406824049<45> × 15011685503784370532456344043601647702276864813773<50> |