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A078071 as a simple table

na(n)
01
1-3
24
3-4
46
5-12
620
7-28
840
9-64
10104
11-160
12240
13-368
14576
15-896
161376
17-2112
183264
19-5056
207808
21-12032
2218560
23-28672
2444288
25-68352
26105472
27-162816
28251392
29-388096
30599040
31-924672
321427456
33-2203648
343401728
35-5251072
368105984
37-12513280
3819316736
39-29818880
4046030848

[1,-3,4,-4,6,-12,20,-28,40,-64,104,-160,240,-368,
 576,-896,1376,-2112,3264,-5056,7808,-12032,18560,
 -28672,44288,-68352,105472,-162816,251392,-388096,
 599040,-924672,1427456,-2203648,3401728,-5251072,
 8105984,-12513280,19316736,-29818880,46030848]