n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 238: | \[238!!-1\] | 239 × 313 × 1847 × 128844769 × 51840665243<11> × [40145381935912111791821362797462439121592420194300816498931603969019591849426611314916349312441127531475278492740192230462223045918318822587097385794923151181381359105251164347401689642425445086423874490493<206>] |