n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 222: | \[222!!-1\] | 223 × 88862071224468743<17> × [230966422563669426690761657984495677817388475985995619888319359627475869182603622130704024449046519406952336874044009484172196217631453766078591629607397952018944586675584106768130101879048344791<195>] |