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A120084 as a simple table

na(n)
01
1-1
21
30
4-1
50
61
70
8-1
90
101
110
12-691
130
141
150
16-3617
170
1843867
190
20-174611
210
2277683
230
24-236364091
250
26657931
270
28-3392780147
290
301723168255201
310
32-7709321041217
330
34151628697551
350
36-26315271553053477373

[1,-1,1,0,-1,0,1,0,-1,0,1,0,-691,0,1,0,-3617,0,
 43867,0,-174611,0,77683,0,-236364091,0,657931,0,
 -3392780147,0,1723168255201,0,-7709321041217,0,
 151628697551,0,-26315271553053477373]