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A122521 as a simple table

na(n)
11
21
31
41
51
61
71
81
92
102
112
122
132
142
153
163
174
184
194
204
215
225
237
247
258
268
279
289
2912
3012
3115
3215
3317
3417
3521
3621
3727
3827
3932
4032
4138
4238
4348
4448
4559
4659
4770
4870
4986
5086
51107
52107
53129
54129
55156
56156
57193
58193
59236
60236
61285
62285
63349
64349
65429
66429
67521
68521
69634
70634
71778
72778

[1,1,1,1,1,1,1,1,2,2,2,2,2,2,3,3,4,4,4,4,5,5,7,7,
 8,8,9,9,12,12,15,15,17,17,21,21,27,27,32,32,38,38,
 48,48,59,59,70,70,86,86,107,107,129,129,156,156,
 193,193,236,236,285,285,349,349,429,429,521,521,
 634,634,778,778]