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A342186 as a simple table

na(n)
11
2-1
31
43
5-4
61
7-21
831
9-11
101
11315
12-486
13196
14-26
151
16-9765
1715381
18-6562
191002
20-57
211
22615195
23-978768
24428787
25-69688
264593
27-120
281
29-78129765
30124918731
31-55434717
329279163
33-652999
3419833
35-247
361

[1,-1,1,3,-4,1,-21,31,-11,1,315,-486,196,-26,1,
 -9765,15381,-6562,1002,-57,1,615195,-978768,
 428787,-69688,4593,-120,1,-78129765,124918731,
 -55434717,9279163,-652999,19833,-247,1]