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A274651 as a simple table

na(n)
11
22
33
44
51
62
73
85
94
106
116
122
131
143
154
165
174
186
192
207
218
227
238
243
251
266
275
289
299
306
3110
325
338
343
3511
367
378
3811
399
404
411
427
4310
446
455
4612
477
4813
498
502
519
524
5311
5410
5514
5610
579
585
5912
603
611
622
6313
647
658
6611
6711
6812
698
7013
715
724
733
7410
759
7615
7714
7816
7913
8010
8111
827
839
842
851
8612
878
885
8917
9015
9118

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