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A215683 as a simple table

na(n)
01
10
20
3-3
40
530
690
7-588
8-5040
911400
10325080
11336072
12-25237080
13-126955920
142273150880
1525210740552
16-217110741120
17-4985924326080
1816380284725440
191066531842442752
201493617498611840
21-249776526926340480
22-1647997041357152640
2363281386481329443072

[1,0,0,-3,0,30,90,-588,-5040,11400,325080,336072,
 -25237080,-126955920,2273150880,25210740552,
 -217110741120,-4985924326080,16380284725440,
 1066531842442752,1493617498611840,
 -249776526926340480,-1647997041357152640,
 63281386481329443072]