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A008721 as a simple table

na(n)
01
10
22
30
43
50
64
71
85
92
106
113
127
134
149
155
1611
176
1813
197
2015
219
2217
2311
2419
2513
2621
2715
2824
2917
3027
3119
3230
3321
3433
3524
3636
3727
3839
3930
4042
4133
4246
4336
4450
4539
4654
4742
4858
4946
5062
5150
5266
5354
5470
5558
5675
5762
5880
5966
6085
6170
6290
6375
6495
6580
66100
6785
68105
6990
70111
7195
72117
73100
74123

[1,0,2,0,3,0,4,1,5,2,6,3,7,4,9,5,11,6,13,7,15,9,
 17,11,19,13,21,15,24,17,27,19,30,21,33,24,36,27,
 39,30,42,33,46,36,50,39,54,42,58,46,62,50,66,54,
 70,58,75,62,80,66,85,70,90,75,95,80,100,85,105,90,
 111,95,117,100,123]