n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 151: | \[151!!+1\] | 2 × 167 × [27558938937426219708489352563040745333349639625962310590077689871879289766541856883527802393669414393775693378329757992693050178939<131>] |