n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 188: | \[188!!-1\] | 191 × 349 × 660631259191<12> × 438299072287450463<18> × [111585288135186596640296620185708238507228274837597880189350103897308588924858169451494176607665797641425652971693505394811757160775115582317<141>] |