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A137738 as a simple table

na(n)
01
10
21
3-2
43
51
6-24
714
89
91
10-288
1154
1295
1318
141
15-4320
16-136
171110
18315
1930
201
21-80640
22-12300
2315064
245775
25775
2645
271

[1,0,1,-2,3,1,-24,14,9,1,-288,54,95,18,1,-4320,
 -136,1110,315,30,1,-80640,-12300,15064,5775,775,
 45,1]