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A068453 as a simple table

na(n)
11
21
30
43
52
65
70
84
93
109
118
122
138
140
1510
1615
172
1810
198
2019
2112
224
2318
2423
258
264
2721
2815
2917
301
3111
3219
337
3425
3515
363
3720
385
3924
4025
4135
429
4312
4425
4526
4622
4723
4811
4943
5046
516
520
5325
5427
5530
566
5714
5820
5933
605
6130
6223
6342
644
6511
6619
6755
6863
6943
7012
7152
7251
7322
7429
7511
768
7719
7835
7925

[1,1,0,3,2,5,0,4,3,9,8,2,8,0,10,15,2,10,8,19,12,4,
 18,23,8,4,21,15,17,1,11,19,7,25,15,3,20,5,24,25,
 35,9,12,25,26,22,23,11,43,46,6,0,25,27,30,6,14,20,
 33,5,30,23,42,4,11,19,55,63,43,12,52,51,22,29,11,
 8,19,35,25]