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A020650 as a simple table

na(n)
11
22
31
43
51
63
72
84
91
104
113
125
132
145
153
165
171
185
194
207
213
227
234
247
252
267
275
288
293
308
315
326
331
346
355
369
374
389
395
4010
413
4210
437
4411
454
4611
477
489
492
509
517
5212
535
5412
557
5611
573
5811
598
6013
615
6213
638
647
651
667
676
6811
695
7011
716
7213
734
7413
759
7614
775
7814
799
8013
813
8213
8310
8417
857
8617
8710
8815
894
9015
9111
9218
937
9418

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