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A305866 as a simple table

na(n)
11
21
31
42
53
62
73
83
96
106
113
124
138
144
157
169
1711
185
196
209
214
227
2313
2415
258
2611
277
2813
2910
3013
319
3216
3315
3412
3519
369
378
388
3920
4020
4125
4211
4317
4411
4518
4615
479
4813
4921
5014
5125
5228
5311
5427
5524
5626
5732
5813
5912
6022
6114
6229
6319
6427
6514
6626
6714
6814
6929
7024
7126
7240

[1,1,1,2,3,2,3,3,6,6,3,4,8,4,7,9,11,5,6,9,4,7,13,
 15,8,11,7,13,10,13,9,16,15,12,19,9,8,8,20,20,25,
 11,17,11,18,15,9,13,21,14,25,28,11,27,24,26,32,13,
 12,22,14,29,19,27,14,26,14,14,29,24,26,40]