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A304740 as a simple table

na(n)
01
12
21
33
43
54
61
71
85
96
106
112
123
137
146
158
169
174
181
196
2010
211
221
235
245
2511
2611
273
2810
2912
3012
318
3213
336
346
3514
363
3715
3811
391
4016
4117
4212
4314
443
4517
4612
472
489
4918
5019
512
5220
534
541
5512
5616
574
581
5911
6021
6112
6212
632
6422
654
661
6723
6810
6919
7019
7114
725
7324
7424
752
7620
777
786
7925
8026
8123
8223
833
8421
8519
8619
8725
885
8923
9023
9110
9221
931
941
9510
9613
9727
9827
9921
10028
1011
1021

[1,2,1,3,3,4,1,1,5,6,6,2,3,7,6,8,9,4,1,6,10,1,1,5,
 5,11,11,3,10,12,12,8,13,6,6,14,3,15,11,1,16,17,12,
 14,3,17,12,2,9,18,19,2,20,4,1,12,16,4,1,11,21,12,
 12,2,22,4,1,23,10,19,19,14,5,24,24,2,20,7,6,25,26,
 23,23,3,21,19,19,25,5,23,23,10,21,1,1,10,13,27,27,
 21,28,1,1]