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A242091 as a simple table

na(n)
10
22
315
4128
51310
615864
7222936
83572736
964354608
101287495360
1128328889600
12679936896000
1317678878214400
14495015296025600
1514850552286080000
16475219068007219200
1716157470542709708800
18581669316147767500800
1922103440771676298854400

[0,2,15,128,1310,15864,222936,3572736,64354608,
 1287495360,28328889600,679936896000,
 17678878214400,495015296025600,14850552286080000,
 475219068007219200,16157470542709708800,
 581669316147767500800,22103440771676298854400]