n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 149: | \[149!!-1\] | 2 × 1085197 × 1480823343161<13> × 159238280082478972841<21> × 4868940158309724018724758645116112403044059<43> × 24462918305912743840449619878659871114103938023369<50> |