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A231347 as a simple table

na(n)
10
21
32
41
53
60
74
83
95
100
111
126
135
140
157
160
170
188
197
203
219
220
230
241
2510
269
270
280
2911
300
315
320
3312
3411
350
360
3713
380
390
403
4114
4213
437
440
451
4615
470
480
490
500
5116
5215
530
540
550
5617
570
589
595
600
6118
6217
630
640
650
6619
670
680
690
703
7120
7219
7311
740
750
761
7721
780
790
807
810
820

[0,1,2,1,3,0,4,3,5,0,1,6,5,0,7,0,0,8,7,3,9,0,0,1,
 10,9,0,0,11,0,5,0,12,11,0,0,13,0,0,3,14,13,7,0,1,
 15,0,0,0,0,16,15,0,0,0,17,0,9,5,0,18,17,0,0,0,19,
 0,0,0,3,20,19,11,0,0,1,21,0,0,7,0,0]