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A292625 as a simple table

na(n)
13
2-29
314
4509
5-283
631
7-17053
810104
9-1306
1064
111116637
12-682005
1394994
14-5466
15129
16-144570461
1789619570
18-12936231
19800108
20-22107
21258
2237221717341
23-23243908815
243414230937
25-218563987
266481607
27-88413
28515

[3,-29,14,509,-283,31,-17053,10104,-1306,64,
 1116637,-682005,94994,-5466,129,-144570461,
 89619570,-12936231,800108,-22107,258,37221717341,
 -23243908815,3414230937,-218563987,6481607,-88413,
 515]