n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 262: | \[262!!!+1\] | 2971959599442624617<19> × 636999762729035806247319292423<30> × 38471750614438472131594157400649197219974598690333146905783<59> × 46538924489239248170838500623648619779014225143890873496039794022617<68> |