n!/n# + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 55: | \[77!/77\#+1\] | 43 × 289871 × 13322087 × 47484680530081<14> × 6479977524550113449<19> × 69764185356598813373410986268836430739<38> |