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A103968 as a simple table

na(n)
11
213
374
41092
54864
659200
7346112
84756752
919436692
10251916288
111294876800
1220786304000
1379541043200
141073030266880
155303003316224
1681061789640832
17324992122224640
184102172934143680
1920588576135708672
20376372958524932096

[1,13,74,1092,4864,59200,346112,4756752,19436692,
 251916288,1294876800,20786304000,79541043200,
 1073030266880,5303003316224,81061789640832,
 324992122224640,4102172934143680,
 20588576135708672,376372958524932096]