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A330408 as a simple table

na(n)
11
22
32
43
52
63
74
84
93
104
115
124
136
144
155
166
176
186
198
205
216
227
236
246
258
2610
276
287
298
308
316
328
3310
3412
357
368
379
388
399
408
4110
4212
4314
448
459
4610
4710
489
4912
5010
5112
5214
5316
549
5510
5611
5710
5812
5912
6015
6112
6214
6316
6418
6510
6611
6712
6812
6912
7012
7115
7218
7314
7416
7518
7620

[1,2,2,3,2,3,4,4,3,4,5,4,6,4,5,6,6,6,8,5,6,7,6,6,
 8,10,6,7,8,8,6,8,10,12,7,8,9,8,9,8,10,12,14,8,9,
 10,10,9,12,10,12,14,16,9,10,11,10,12,12,15,12,14,
 16,18,10,11,12,12,12,12,15,18,14,16,18,20]