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A123920 as a simple table

na(n)
11
22
31
42
52
62
73
84
93
104
114
124
135
146
155
166
176
186
197
208
217
228
238
248
259
2610
279
2810
2910
3010
3111
3212
3311
3412
3512
3612
3713
3814
3913
4014
4114
4214
4315
4416
4515
4616
4716
4816
4917
5018
5117
5218
5318
5418
5519
5620
5719
5820
5920
6020
6121
6222
6321
6422
6522
6622
6723
6824
6923
7024
7124
7224
7325
7426
7525
7626
7726
7826

[1,2,1,2,2,2,3,4,3,4,4,4,5,6,5,6,6,6,7,8,7,8,8,8,
 9,10,9,10,10,10,11,12,11,12,12,12,13,14,13,14,14,
 14,15,16,15,16,16,16,17,18,17,18,18,18,19,20,19,
 20,20,20,21,22,21,22,22,22,23,24,23,24,24,24,25,
 26,25,26,26,26]