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A161857 as a simple table

na(n)
11
22
33
43
55
64
77
84
97
104
1111
124
1313
144
1511
165
1717
1812
1919
20-3
2113
224
2323
24-4
2521
264
2715
283
2929
3038
3131
326
3317
344
3531
36-5
3737
384
3919
40-42
4141
4276
4343
4415
4527
464
4747
48-66
4943
50-4
5123
5221
5353
5468
5543
5634
5725
584
5959
60-434
6161
624
639
647
6549
6660
6767
6833
6929
70-54
7171
7224
7373
744
7559
7639
7769

[1,2,3,3,5,4,7,4,7,4,11,4,13,4,11,5,17,12,19,-3,
 13,4,23,-4,21,4,15,3,29,38,31,6,17,4,31,-5,37,4,
 19,-42,41,76,43,15,27,4,47,-66,43,-4,23,21,53,68,
 43,34,25,4,59,-434,61,4,9,7,49,60,67,33,29,-54,71,
 24,73,4,59,39,69]