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A286533 as a simple table

na(n)
01
12
23
32
44
55
63
72
86
97
107
115
124
135
143
152
168
179
1810
197
209
2111
227
235
246
257
267
275
284
295
303
312
3212
3313
3414
359
3614
3715
3810
397
4013
4115
4215
4311
449
4511
467
475
488
499
5010
517
529
5311
547
555
566
577
587
595
604
615
623
632
6416
6517
6618
6713
6819
6920
7014
719
7218
7321
7421
7515
7614
7715
7810
797
8017
8120
8221
8315
8420
8522
8615
8711
8813
8915
9015
9111
929
9311
947
955
9612
9713
9814
999
10014
10115
10210
1037

[1,2,3,2,4,5,3,2,6,7,7,5,4,5,3,2,8,9,10,7,9,11,7,
 5,6,7,7,5,4,5,3,2,12,13,14,9,14,15,10,7,13,15,15,
 11,9,11,7,5,8,9,10,7,9,11,7,5,6,7,7,5,4,5,3,2,16,
 17,18,13,19,20,14,9,18,21,21,15,14,15,10,7,17,20,
 21,15,20,22,15,11,13,15,15,11,9,11,7,5,12,13,14,9,
 14,15,10,7]