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A128859 as a simple table

na(n)
10
21
31
41
52
64
72
84
96
104
116
128
136
149
1512
1610
178
1810
199
2012
2110
2216
2320
2416
2520
2613
2722
2818
2924
3017
3118
3232
3318
3436
3516
3624
3726
3836
3942
4037
4124
4229
4332
4442
4523
4616
4738
4849
4936
5056
5144
5232
5344
5464
5559
5666
5733
5844
5948
6040
6172
6248
6355
6448
6578
6635
6748
6879
6956
7080
7180
7260
7360
7455

[0,1,1,1,2,4,2,4,6,4,6,8,6,9,12,10,8,10,9,12,10,
 16,20,16,20,13,22,18,24,17,18,32,18,36,16,24,26,
 36,42,37,24,29,32,42,23,16,38,49,36,56,44,32,44,
 64,59,66,33,44,48,40,72,48,55,48,78,35,48,79,56,
 80,80,60,60,55]