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A046147 as a simple table

na(n)
21
32
43
52
63
75
83
95
102
115
123
137
142
156
167
178
182
196
207
2111
223
235
243
255
266
277
2810
2911
3012
3114
325
3311
342
353
3610
3713
3814
3915
407
4113
4217
4319
445
457
4610
4711
4814
4915
5017
5119
5220
5321
542
553
568
5712
5813
5917
6022
6123
627
6311
6415
6519
662
675
6811
6914
7020
7123
722
733
748
7510
7611
7714
7815
7918
8019
8121
8226

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