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A055573 as a simple table

na(n)
11
22
33
42
55
64
76
87
910
108
117
1210
1315
149
159
1617
1718
1811
1920
2016
2118
2218
2323
2419
2524
2625
2724
2826
2929
3021
3124
3223
3326
3425
3532
3634
3733
3826
3924
4031
4132
4231
4336
4436
4539
4632
4734
4842
4947
5044
5146
5235
5340
5448
5543
5647
5759
5850
5949
6039
6150
6266
6354
6444
6554
6649
6741
6864
6947
7046
7154
7271
7372

[1,2,3,2,5,4,6,7,10,8,7,10,15,9,9,17,18,11,20,16,
 18,18,23,19,24,25,24,26,29,21,24,23,26,25,32,34,
 33,26,24,31,32,31,36,36,39,32,34,42,47,44,46,35,
 40,48,43,47,59,50,49,39,50,66,54,44,54,49,41,64,
 47,46,54,71,72]