n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
176: | \[176!!-1\] | 787 × 14579681 × 17275554251<11> × 289593059013057784048450182515167327198984992618843382915046892331216599850298978315078784551534299583542180729217950957678586929656351145967<141> |