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A176506 as a simple table

na(n)
10
21
30
42
53
61
72
84
90
105
113
126
131
147
154
168
170
185
192
206
219
2210
233
247
2511
261
2712
284
2913
308
312
329
3314
345
3515
3610
376
3816
393
400
4117
4211
4312
444
4518
4613
4719
481
497
5020
518
5221
5314
545
5522
560
5715
5823
5916
609
612
6224
6317
6425
656
6610
6726
683
6918
7027
7111
727
7328
7419
751
7629
7712
7820
792
8021
814
8230
838
8431
8513
8622

[0,1,0,2,3,1,2,4,0,5,3,6,1,7,4,8,0,5,2,6,9,10,3,7,
 11,1,12,4,13,8,2,9,14,5,15,10,6,16,3,0,17,11,12,4,
 18,13,19,1,7,20,8,21,14,5,22,0,15,23,16,9,2,24,17,
 25,6,10,26,3,18,27,11,7,28,19,1,29,12,20,2,21,4,
 30,8,31,13,22]