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A009429 as a simple table

na(n)
00
11
2-1
35
4-12
569
6-285
72001
8-12208
9104073
10-854865
118723549
12-90552396
131088372557
14-13647385661
15190057979177
16-2787246189120
1744285819490065
18-742019231348865
1913267464006201781
20-249642268776311020

[0,1,-1,5,-12,69,-285,2001,-12208,104073,-854865,
 8723549,-90552396,1088372557,-13647385661,
 190057979177,-2787246189120,44285819490065,
 -742019231348865,13267464006201781,
 -249642268776311020]