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A366631 as a simple table

na(n)
11
21
32
41
52
63
72
84
92
103
114
125
133
146
153
165
176
187
193
208
214
225
237
248
257
268
279
284
297
309
3110
324
339
3410
3511
364
3710
3812
394
4011
4113
424
4312
4413
4512
4613
4714
484
4915
504
5114
5215
5316
544
5517
566
578
5810
5914
6016
6117
6216
6317
6418
659
6615
6717
6818
6919
7011
7116
7219
7320
7418
7519

[1,1,2,1,2,3,2,4,2,3,4,5,3,6,3,5,6,7,3,8,4,5,7,8,
 7,8,9,4,7,9,10,4,9,10,11,4,10,12,4,11,13,4,12,13,
 12,13,14,4,15,4,14,15,16,4,17,6,8,10,14,16,17,16,
 17,18,9,15,17,18,19,11,16,19,20,18,19]