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A086593 as a simple table

na(n)
12
23
34
45
55
67
77
88
96
109
1110
1211
139
1412
1511
1613
177
1811
1913
2014
2113
2217
2315
2418
2511
2616
2717
2819
2914
3019
3118
3221
338
3413
3516
3617
3717
3822
3919
4023
4116
4223
4324
4427
4519
4626
4725
4829
4913
5020
5123
5225
5322
5429
5526
5631
5717
5825
5927
6030
6123
6231
6329
6434
659
6615
6719
6820
6921
7027
7123
7228
7321
7430

[2,3,4,5,5,7,7,8,6,9,10,11,9,12,11,13,7,11,13,14,
 13,17,15,18,11,16,17,19,14,19,18,21,8,13,16,17,17,
 22,19,23,16,23,24,27,19,26,25,29,13,20,23,25,22,
 29,26,31,17,25,27,30,23,31,29,34,9,15,19,20,21,27,
 23,28,21,30]