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A274665 as a simple table

na(n)
01
14
230
3280
42890
531584
6358176
74168560
849455450
9595480600
107254787540
1189234708160
121106335812400
1313808393670400
14173332340911200
152186551157230560
1627701981424940890
17352297514508697800
184495418315974868700
1957535568476437651600
20738373616359119126540

[1,4,30,280,2890,31584,358176,4168560,49455450,
 595480600,7254787540,89234708160,1106335812400,
 13808393670400,173332340911200,2186551157230560,
 27701981424940890,352297514508697800,
 4495418315974868700,57535568476437651600,
 738373616359119126540]