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A276815 as a simple table

na(n)
13
24
3-24
45
5-70
6210
76
8-96
9-48
10960
11-1920
127
13-126
14-126
151386
161386
17-12012
1818018
198
20-160
21-160
221920
23-80
243840
25-17920
26640
27-26880
28143360
29-172032
309
31-198
32-198
332574
34-198
355148
36-25740
372574
382574
39-77220
40218790
41-25740
42437580
43-1662804
441662804
4510
46-240
47-240
483360
49-240
506720
51-35840
52-120
536720
543360

[3,4,-24,5,-70,210,6,-96,-48,960,-1920,7,-126,
 -126,1386,1386,-12012,18018,8,-160,-160,1920,-80,
 3840,-17920,640,-26880,143360,-172032,9,-198,-198,
 2574,-198,5148,-25740,2574,2574,-77220,218790,
 -25740,437580,-1662804,1662804,10,-240,-240,3360,
 -240,6720,-35840,-120,6720,3360]