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A371017 as a simple table

na(n)
120
2520
35880
448720
5341880
62162160
712732720
871179680
9382444920
101991669680
1110113543440
1250297301600
13245807780400
141183546677600
155626112450400
1626447537160000
17123113285479800
18568139770321200
192601623487262800
2011830908080191200
2153465154668125200
22240246019677549600

[20,520,5880,48720,341880,2162160,12732720,
 71179680,382444920,1991669680,10113543440,
 50297301600,245807780400,1183546677600,
 5626112450400,26447537160000,123113285479800,
 568139770321200,2601623487262800,
 11830908080191200,53465154668125200,
 240246019677549600]