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A304242 as a simple table

na(n)
11
2-4
3-6
4-8
5-9
6-12
7-15
8-16
9-25
10-29
1135
12-43
1351
14-72
1573
16-88
1796
18-113
19-132
20-134
21-154
22240
23-258
24-278
25-368
26432
27550
28-683
29-847
301060
31-1078
321240
33-1447
34-2573
352845
36-3448
37-4610
38-6226
396695
40-8565
419132
4210246
43-15335
44-17334
4521777
46-25071

[1,-4,-6,-8,-9,-12,-15,-16,-25,-29,35,-43,51,-72,
 73,-88,96,-113,-132,-134,-154,240,-258,-278,-368,
 432,550,-683,-847,1060,-1078,1240,-1447,-2573,
 2845,-3448,-4610,-6226,6695,-8565,9132,10246,
 -15335,-17334,21777,-25071]