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A259453 as a simple table

na(n)
11
2-1
31
4-7
53
67
7-1
81
9-3
102
11-1
121
13-2
14-1
151
163
17-1
181
19-3
20-1
211
222
23-1
241
25-2
26-42
273
28-1
291
30-3
31-1
321
33-1
341
352
363
376
38-1
391
40-6
41-3
42-2
43-1
441
45-1
461
473
48-1
491
50-3
512
524
53-1
541
55-4
56-2
57-1
581
59-21
603
61-1
621
63-3
64-1
651
662
67-1
681
69-2
703

[1,-1,1,-7,3,7,-1,1,-3,2,-1,1,-2,-1,1,3,-1,1,-3,
 -1,1,2,-1,1,-2,-42,3,-1,1,-3,-1,1,-1,1,2,3,6,-1,1,
 -6,-3,-2,-1,1,-1,1,3,-1,1,-3,2,4,-1,1,-4,-2,-1,1,
 -21,3,-1,1,-3,-1,1,2,-1,1,-2,3]