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A371357 as a simple table

na(n)
01
12
212
340
4560
52016
614784
754912
81647360
96223360
1047297536
11180590592
122769055744
1310650214400
1482158796800
15317680680960
1619696202219520
1776467608616960
18594748067020800
192316387208396800
2036135640450990080
21141101072237199360
221103153837490831360

[1,2,12,40,560,2016,14784,54912,1647360,6223360,
 47297536,180590592,2769055744,10650214400,
 82158796800,317680680960,19696202219520,
 76467608616960,594748067020800,2316387208396800,
 36135640450990080,141101072237199360,
 1103153837490831360]