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A159909 as a simple table

na(n)
10
20
30
40
51
60
71
82
93
103
114
122
137
141
153
162
176
186
194
207
219
226
235
2410
257
269
278
286
2913
309
314
3214
3310
3410
3518
366
3712
3812
3910
4016
4115
4211
4318
4414
4511
4619
4716
4813
4919
5014
5117
5222
5318
5416
5517
5618
5719
5820
5919
6022
6117
6219
6317
6419
6519
6619
6731
6825
6913
7038
7120
7223
7325
7423
7531
7630
7731
7819

[0,0,0,0,1,0,1,2,3,3,4,2,7,1,3,2,6,6,4,7,9,6,5,10,
 7,9,8,6,13,9,4,14,10,10,18,6,12,12,10,16,15,11,18,
 14,11,19,16,13,19,14,17,22,18,16,17,18,19,20,19,
 22,17,19,17,19,19,19,31,25,13,38,20,23,25,23,31,
 30,31,19]