n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 237: | \[237!!!!!+1\] | 131 × 202769808587395399951<21> × 35380457895507548329118203<26> × 2068268731845717317662760615028897987829043039<46> |