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A308684 as a simple table

na(n)
11
22
3-2
41
53
6-3
7-3
83
93
10-3
111
124
13-4
14-4
15-4
166
174
188
19-8
20-4
214
22-4
234
242
25-4
261
275
28-5
29-5
30-5
31-5
3210
335
3410
3510
36-15
375
38-15
395
405
41-5
42-15
4310
445
4510
46-5
47-5
48-5
495
505
515
52-5
535
545
55-5
561

[1,2,-2,1,3,-3,-3,3,3,-3,1,4,-4,-4,-4,6,4,8,-8,-4,
 4,-4,4,2,-4,1,5,-5,-5,-5,-5,10,5,10,10,-15,5,-15,
 5,5,-5,-15,10,5,10,-5,-5,-5,5,5,5,-5,5,5,-5,1]