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A171896 as a simple table

na(n)
11
22
32
43
53
64
74
84
94
104
115
125
136
146
156
166
176
187
197
207
218
228
238
248
259
269
279
289
299
309
3110
3210
3310
3410
3510
3611
3711
3811
3911
4011
4111
4212
4312
4412
4513
4613
4713
4814
4914
5014
5114
5214
5315
5415
5515
5615
5716
5816
5916
6017
6117
6217
6317
6418
6518
6618
6719
6819
6919
7019
7119
7219
7320
7420
7520
7620

[1,2,2,3,3,4,4,4,4,4,5,5,6,6,6,6,6,7,7,7,8,8,8,8,
 9,9,9,9,9,9,10,10,10,10,10,11,11,11,11,11,11,12,
 12,12,13,13,13,14,14,14,14,14,15,15,15,15,16,16,
 16,17,17,17,17,18,18,18,19,19,19,19,19,19,20,20,
 20,20]