n# + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
51: | \[233\#+1\] | 5981 × 32933 × 35077871 × 226523119 × 2840167705774046480858712270590480570610404353713803822775742139334623<70> |