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A195939 as a simple table

na(n)
13
25
35
46
57
68
78
89
99
109
1110
1210
1311
1411
1512
1613
1714
1815
1915
2015
2116
2216
2316
2417
2518
2618
2718
2819
2919
3020
3120
3221
3321
3421
3522
3622
3723
3824
3924
4024
4125
4225
4326
4427
4527
4627
4727
4827
4927
5028
5129
5230
5330
5430
5531
5631
5732
5832
5932
6032
6132
6233
6333
6433
6534
6635
6735
6835
6936
7036

[3,5,5,6,7,8,8,9,9,9,10,10,11,11,12,13,14,15,15,
 15,16,16,16,17,18,18,18,19,19,20,20,21,21,21,22,
 22,23,24,24,24,25,25,26,27,27,27,27,27,27,28,29,
 30,30,30,31,31,32,32,32,32,32,33,33,33,34,35,35,
 35,36,36]