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A123965 as a simple table

na(n)
01
13
2-1
38
4-6
51
621
7-25
89
9-1
1055
11-90
1251
13-12
141
15144
16-300
17234
18-86
1915
20-1
21377
22-954
23951
24-480
25130
26-18
271
28987
29-2939
303573
31-2305
32855
33-183
3421
35-1
362584
37-8850
3812707
39-10008
404740
41-1386
42245
43-24
441
456765
46-26195
4743398
48-40426
4923373
50-8715
512100
52-316
5327
54-1

[1,3,-1,8,-6,1,21,-25,9,-1,55,-90,51,-12,1,144,
 -300,234,-86,15,-1,377,-954,951,-480,130,-18,1,
 987,-2939,3573,-2305,855,-183,21,-1,2584,-8850,
 12707,-10008,4740,-1386,245,-24,1,6765,-26195,
 43398,-40426,23373,-8715,2100,-316,27,-1]