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A038017 as a simple table

na(n)
11
22
315
4720
5409600
63920030472
7775775333825891
83837862827737186253664
9558740081065710564284870598075
102755731923933734753149997221152548428020
11520996314135332606285488148844494695722050333912483

[1,2,15,720,409600,3920030472,775775333825891,
 3837862827737186253664,
 558740081065710564284870598075,
 2755731923933734753149997221152548428020,
 52099631413533260628548814884449469572205033391248\
 3]