n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
248: | \[248!!!-1\] | 26621875381090701334076614772329078755252311901484991157321632924164622920006806743226045917302007970997480170764019308912861370280568063787007999999999999999999999<164> |