n# + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
76: | \[383\#+1\] | 1252724596359114607416742220222030302294387892643573321852443386423988709173<76> × 525745644577227350352675880086967107492595776746408796031609932313413723952581047<81> |