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A351520 as a simple table

na(n)
11
22
33
44
54
65
76
88
97
107
118
1210
139
1410
1511
1614
1712
1814
1913
2015
2114
2215
2316
2420
2517
2617
2719
2819
2918
3019
3120
3224
3321
3422
3523
3628
3724
3825
3926
4030
4127
4228
4329
4431
4531
4630
4731
4837
4932
5033
5132
5234
5333
5437
5534
5638
5735
5836
5937
6041
6138
6239
6341
6444
6540
6641
6742
6844
6943
7044
7145
7253
7346
7447
7549

[1,2,3,4,4,5,6,8,7,7,8,10,9,10,11,14,12,14,13,15,
 14,15,16,20,17,17,19,19,18,19,20,24,21,22,23,28,
 24,25,26,30,27,28,29,31,31,30,31,37,32,33,32,34,
 33,37,34,38,35,36,37,41,38,39,41,44,40,41,42,44,
 43,44,45,53,46,47,49]