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A008720 as a simple table

na(n)
01
10
22
30
43
51
64
72
85
93
107
114
129
135
1411
157
1613
179
1815
1911
2018
2113
2221
2315
2424
2518
2627
2721
2830
2924
3034
3127
3238
3330
3442
3534
3646
3738
3850
3942
4055
4146
4260
4350
4465
4555
4670
4760
4875
4965
5081
5170
5287
5375
5493
5581
5699
5787
58105
5993
60112
6199
62119
63105
64126
65112
66133
67119
68140
69126
70148
71133
72156

[1,0,2,0,3,1,4,2,5,3,7,4,9,5,11,7,13,9,15,11,18,
 13,21,15,24,18,27,21,30,24,34,27,38,30,42,34,46,
 38,50,42,55,46,60,50,65,55,70,60,75,65,81,70,87,
 75,93,81,99,87,105,93,112,99,119,105,126,112,133,
 119,140,126,148,133,156]