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A099741 as a simple table

na(n)
11
21
32
42
52
63
73
83
94
104
114
125
135
145
155
165
175
187
197
207
217
227
237
248
258
268
279
289
299
309
319
329
339
349
359
3612
3712
3812
3912
4012
4112
4212
4312
4412
4512
4612
4712
4813
4913
5013
5113
5213
5313
5416
5516
5616
5716
5816
5916
6016
6116
6216
6316
6416
6516
6616
6716
6816
6916
7016
7116
7220
7320
7420
7520
7620
7720
7820
7920
8020
8121

[1,1,2,2,2,3,3,3,4,4,4,5,5,5,5,5,5,7,7,7,7,7,7,8,
 8,8,9,9,9,9,9,9,9,9,9,12,12,12,12,12,12,12,12,12,
 12,12,12,13,13,13,13,13,13,16,16,16,16,16,16,16,
 16,16,16,16,16,16,16,16,16,16,16,20,20,20,20,20,
 20,20,20,20,21]