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A173936 as a simple table

na(n)
10
2-3
342
4-532
57280
6-110816
71878912
8-35290368
9729151488
10-16458706944
11403306168320
12-10667511152640
13303026291343360
14-9203027198607360
15297626965251194880
16-10212876839131545600
17370647479637717811200
18-14185745639287868620800
19571060601049504861388800

[0,-3,42,-532,7280,-110816,1878912,-35290368,
 729151488,-16458706944,403306168320,
 -10667511152640,303026291343360,-9203027198607360,
 297626965251194880,-10212876839131545600,
 370647479637717811200,-14185745639287868620800,
 571060601049504861388800]