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A353068 as a simple table

na(n)
21
32
42
51
63
72
84
94
102
114
125
133
145
156
166
171
186
197
207
212
225
238
248
252
266
278
289
293
307
319
3210
3310
342
357
3610
3711
3811
393
408
4111
4212
4312
4412
453
469
4712
4812
4913
5013
514
529
5312
5413
5514
5614
571
5810
5913
6014
6115
6215
632
6411
6514
6615
6716
6816
6916
702
7110
7215
7316
7417
7517
7617
773
7811
7916
8017
8118
8218
8318
8418

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