n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 203: | \[203!!-1\] | 2 × 25863319 × 277191227 × 11249099816737<14> × 73368891198017<14> × 22985505277723943784876608029848108208747491828373714528654508163428447180706386719909075636349748680549458412234286499498649678188053597348339804481<149> |