n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 176: | \[176!!+1\] | 89 × 179 × 5903 × 30923699 × 2367945456577<13> × 1536498332614574344933710540782389520439482498158990988896638773<64> × 5425401039418694348989760043055708274942941778617009716234819026692883<70> |