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A068901 as a simple table

na(n)
10
21
31
41
54
65
74
85
94
101
112
1211
1311
1413
1513
1611
179
1811
199
209
2111
229
239
247
253
263
275
285
297
307
3128
3229
3328
3431
3526
3629
3728
3827
3928
4027
4126
4229
4324
4427
4528
4631
4724
4817
4918
5021
5122
5221
5324
5419
5518
5617
5716
5819
5918
6019
6122
6217
638
649
6512
6613
674
683
6967
701

[0,1,1,1,4,5,4,5,4,1,2,11,11,13,13,11,9,11,9,9,11,
 9,9,7,3,3,5,5,7,7,28,29,28,31,26,29,28,27,28,27,
 26,29,24,27,28,31,24,17,18,21,22,21,24,19,18,17,
 16,19,18,19,22,17,8,9,12,13,4,3,67,1]