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A158286 as a simple table

na(n)
01
1-1
2-1
39
410
51
6-256
7-288
8-33
9-1
1015625
1117500
121950
1376
141
15-1679616
16-1866240
17-194400
18-7920
19-145
20-1
21282475249
22311299254
2330000495
241200500
2524255
26246
271
28-68719476736
29-75161927680
30-6694109184
31-256901120
32-5304320
33-61824
34-385
35-1

[1,-1,-1,9,10,1,-256,-288,-33,-1,15625,17500,1950,
 76,1,-1679616,-1866240,-194400,-7920,-145,-1,
 282475249,311299254,30000495,1200500,24255,246,1,
 -68719476736,-75161927680,-6694109184,-256901120,
 -5304320,-61824,-385,-1]