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A338562 as a simple table

na(n)
01
10
2240
320160
40
5319334400
662270208000
70
84979623993344000
91946321606541312000
100
11517040334777699532800000
12155112100433309859840000000
130
14229885811837232250818134016000000
15230239482316981838896315760640000000
160
1782665183731089159437333210700185600000000

[1,0,240,20160,0,319334400,62270208000,0,
 4979623993344000,1946321606541312000,0,
 517040334777699532800000,
 155112100433309859840000000,0,
 229885811837232250818134016000000,
 230239482316981838896315760640000000,0,
 82665183731089159437333210700185600000000]