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A288461 as a simple table

na(n)
01
10
2-120
3192
411232
5-69120
6-887808
711870208
834721280
9-1458585600
104612792320
11124992552960
12-1294622392320
13-3918630223872
14170411025235968
15-1023380614545408
16-11537631123996672
17248923798395420672
18-709263007722504192
19-30740965743050883072
20367936297318798589952
211683415347595793399808

[1,0,-120,192,11232,-69120,-887808,11870208,
 34721280,-1458585600,4612792320,124992552960,
 -1294622392320,-3918630223872,170411025235968,
 -1023380614545408,-11537631123996672,
 248923798395420672,-709263007722504192,
 -30740965743050883072,367936297318798589952,
 1683415347595793399808]