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A034385 as a simple table

na(n)
01
14
240
3480
46240
584864
61188096
716972800
8246105600
93609548800
1053421322240
11796463349760
1211946950246400
13180123249868800
142727580640870400
1541459225741230080
16632253192553758720

[1,4,40,480,6240,84864,1188096,16972800,246105600,
 3609548800,53421322240,796463349760,
 11946950246400,180123249868800,2727580640870400,
 41459225741230080,632253192553758720]