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A191422 as a simple table

na(n)
01
10
22
33
4-4
590
6-126
7-840
821104
9-137592
10-88920
1115741000
12-197234808
13535289040
1425582565904
15-522317151720
163223601137920
1775590725210560
18-2388641226278976
1923718732310200960
20361277667059425920
21-17515819241263405440
22246424647059545933440

[1,0,2,3,-4,90,-126,-840,21104,-137592,-88920,
 15741000,-197234808,535289040,25582565904,
 -522317151720,3223601137920,75590725210560,
 -2388641226278976,23718732310200960,
 361277667059425920,-17515819241263405440,
 246424647059545933440]