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A161511 as a simple table

na(n)
00
11
22
32
43
53
64
73
84
94
105
114
126
135
146
154
165
175
186
195
207
216
227
235
248
257
268
276
289
297
308
315
326
336
347
356
368
377
388
396
409
418
429
437
4410
458
469
476
4810
499
5010
518
5211
539
5410
557
5612
5710
5811
598
6012
619
6210
636
647
657
668
677
689
698
709
717
7210
739
7410
758
7611
779
7810
797
8011
8110
8211
839
8412
8510
8611
878
8813
8911
9012
919
9213

[0,1,2,2,3,3,4,3,4,4,5,4,6,5,6,4,5,5,6,5,7,6,7,5,
 8,7,8,6,9,7,8,5,6,6,7,6,8,7,8,6,9,8,9,7,10,8,9,6,
 10,9,10,8,11,9,10,7,12,10,11,8,12,9,10,6,7,7,8,7,
 9,8,9,7,10,9,10,8,11,9,10,7,11,10,11,9,12,10,11,8,
 13,11,12,9,13]