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A015143 as a simple table

na(n)
01
11
21
31
4-17
51
61
7307
8307
91
101
11-5525
1299775
13-5525
141
151
1699451
1732321575
1832321575
1999451
201
211
22-1790117
2310472289751
24-188467103825
2510472289751
26-1790117
271
281
2932222107
303393020089207
311099150621797151
321099150621797151

[1,1,1,1,-17,1,1,307,307,1,1,-5525,99775,-5525,1,
 1,99451,32321575,32321575,99451,1,1,-1790117,
 10472289751,-188467103825,10472289751,-1790117,1,
 1,32222107,3393020089207,1099150621797151,
 1099150621797151]