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A261880 as a simple table

na(n)
01
1-1
2-2
31
42
54
6-2
7-3
8-5
9-9
105
117
1210
1315
1424
15-16
16-21
17-28
18-38
19-53
20-77
2161
2277
2398
24126
25164
26217
27294
28-272
29-333
30-410
31-508
32-634
33-798
34-1015
35-1309
361385
371657
381990
392400
402908
413542
424340
435355
446664

[1,-1,-2,1,2,4,-2,-3,-5,-9,5,7,10,15,24,-16,-21,
 -28,-38,-53,-77,61,77,98,126,164,217,294,-272,
 -333,-410,-508,-634,-798,-1015,-1309,1385,1657,
 1990,2400,2908,3542,4340,5355,6664]