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A371587 as a simple table

na(n)
11
21
32
42
52
63
73
84
95
105
115
126
136
146
157
167
177
188
198
208
219
229
239
2410
2510
2610
2711
2811
2911
3012
3112
3212
3313
3413
3513
3614
3714
3814
3915
4015
4115
4216
4316
4416
4517
4617
4717
4818
4918
5018
5119
5219
5319
5420
5520
5620
5721
5821
5921
6022
6122
6222
6323
6424
6524
6625
6725
6825
6926
7026
7126
7227
7327
7427
7528
7628

[1,1,2,2,2,3,3,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,9,10,
 10,10,11,11,11,12,12,12,13,13,13,14,14,14,15,15,
 15,16,16,16,17,17,17,18,18,18,19,19,19,20,20,20,
 21,21,21,22,22,22,23,24,24,25,25,25,26,26,26,27,
 27,27,28,28]