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A309407 as a simple table

na(n)
01
12
23
33
44
54
64
75
85
95
106
116
126
136
147
157
167
177
188
198
208
218
228
238
249
259
269
279
289
299
3010
3110
3210
3310
3410
3510
3610
3711
3811
3911
4011
4111
4211
4311
4412
4512
4612
4712
4812
4912
5012
5112
5213
5313
5413
5513
5613
5713
5813
5913
6014
6114
6214
6314
6414
6514
6614
6714
6814
6914
7015
7115
7215
7315
7415
7515
7615
7715
7815
7915
8016
8116
8216
8316
8416
8516
8616
8716
8816

[1,2,3,3,4,4,4,5,5,5,6,6,6,6,7,7,7,7,8,8,8,8,8,8,
 9,9,9,9,9,9,10,10,10,10,10,10,10,11,11,11,11,11,
 11,11,12,12,12,12,12,12,12,12,13,13,13,13,13,13,
 13,13,14,14,14,14,14,14,14,14,14,14,15,15,15,15,
 15,15,15,15,15,15,16,16,16,16,16,16,16,16,16]