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A127731 as a simple table

na(n)
21
32
42
53
64
72
83
94
105
116
124
136
147
156
168
175
186
198
209
2110
223
234
246
258
269
2710
2811
2912
307
3110
3212
3313
346
3510
3612
3714
388
3912
4014
4115
4216
436
449
4512
4614
4715
4816
4917
5018
514
5210
5312
5415
5516
5618
5719
5812
5914
6018
6120
6211
6318
6420
6521
6622
676
688
6912
7015
7116
7218
7320
7421
7522
7623
7720
7824
7913
8022
8124
8225

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