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A072516 as a simple table

na(n)
10
20
30
40
51
62
73
80
91
103
115
123
135
147
159
167
1710
184
197
206
219
2212
2315
2414
2517
2621
2716
2816
2920
3024
3128
3212
3316
3420
3524
3615
3720
3825
3930
4031
4136
4241
4346
4447
4543
4648
4753
4838
4943
5024
5130
5232
5338
5435
5541
5643
5749
5855
5961
6063
6169
6275
6372
6458
6565
6672
6779
6882
6989
7096
71103
7261
7368
7475
7557
7660

[0,0,0,0,1,2,3,0,1,3,5,3,5,7,9,7,10,4,7,6,9,12,15,
 14,17,21,16,16,20,24,28,12,16,20,24,15,20,25,30,
 31,36,41,46,47,43,48,53,38,43,24,30,32,38,35,41,
 43,49,55,61,63,69,75,72,58,65,72,79,82,89,96,103,
 61,68,75,57,60]