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A227190 as a simple table

na(n)
10
21
31
42
54
64
74
85
97
109
119
128
1311
1411
1511
1612
1714
1816
1915
2018
2120
2220
2320
2418
2521
2624
2723
2822
2926
3026
3126
3227
3329
3431
3529
3632
3735
3834
3933
4037
4139
4241
4341
4440
4543
4643
4743
4840
4943
5046
5143
5248
5351
5450
5549
5647
5751
5855
5953
6052
6157
6257
6357
6458
6560
6662
6759
6862

[0,1,1,2,4,4,4,5,7,9,9,8,11,11,11,12,14,16,15,18,
 20,20,20,18,21,24,23,22,26,26,26,27,29,31,29,32,
 35,34,33,37,39,41,41,40,43,43,43,40,43,46,43,48,
 51,50,49,47,51,55,53,52,57,57,57,58,60,62,59,62]