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A279932 as a simple table

na(n)
01
1-5
25
30
430
5-51
65
7-130
8220
9-125
10649
11-605
12870
13-2695
141565
15-4852
167915
17-6360
1820625
19-17880
2033551
21-61015
2250865
23-138510
24135485
25-224725
26389025
27-359610
28849525
29-838970
301417404
31-2195205
322275690
33-4756040
344657940
35-8315123
3611174840
37-13352315

[1,-5,5,0,30,-51,5,-130,220,-125,649,-605,870,
 -2695,1565,-4852,7915,-6360,20625,-17880,33551,
 -61015,50865,-138510,135485,-224725,389025,
 -359610,849525,-838970,1417404,-2195205,2275690,
 -4756040,4657940,-8315123,11174840,-13352315]