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A301853 as a simple table

na(n)
11
22
33
43
55
66
74
87
99
1010
115
129
1312
1414
1515
166
1711
1815
1917
2019
2120
227
2313
2418
2521
2624
2726
2827
298
3015
3121
3225
3329
3431
3533
3634
379
3817
3924
4029
4133
4236
4339
4441
4542
4610
4719
4827
4933
5038
5142
5245
5348
5450
5551
5611
5721
5830
5937
6043
6148
6251
6355
6458
6560
6661
6712
6823
6933
7041
7148
7253
7357
7461
7565
7668
7770
7871

[1,2,3,3,5,6,4,7,9,10,5,9,12,14,15,6,11,15,17,19,
 20,7,13,18,21,24,26,27,8,15,21,25,29,31,33,34,9,
 17,24,29,33,36,39,41,42,10,19,27,33,38,42,45,48,
 50,51,11,21,30,37,43,48,51,55,58,60,61,12,23,33,
 41,48,53,57,61,65,68,70,71]