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A139231 as a simple table

na(n)
14
224
396
48064
5122880
6393216
72146959360
82305843007066210304
9618970017336847128235868160
10162258657859193720701440560726016
11170141021201192402518323912137873817600

[4,24,96,8064,122880,393216,2146959360,
 2305843007066210304,618970017336847128235868160,
 162258657859193720701440560726016,
 170141021201192402518323912137873817600]