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A189172 as a simple table

na(n)
11
21
31
42
52
62
72
82
93
102
113
122
133
142
153
162
173
183
193
202
213
223
233
242
255
263
273
282
295
303
315
322
333
343
355
363
375
383
393
402
415
423
435
443
453
463
475
482
497
505
513
523
537
543
555
562
573
585
597
603
617
625
633
642
655
663
677
683
693
705
717
723
737
745
755
763
777
783
797
802
813
825
837
843
855
865
875
883
897
903
917
923
935
945
955
962
977
987
993
1005

[1,1,1,2,2,2,2,2,3,2,3,2,3,2,3,2,3,3,3,2,3,3,3,2,
 5,3,3,2,5,3,5,2,3,3,5,3,5,3,3,2,5,3,5,3,3,3,5,2,7,
 5,3,3,7,3,5,2,3,5,7,3,7,5,3,2,5,3,7,3,3,5,7,3,7,5,
 5,3,7,3,7,2,3,5,7,3,5,5,5,3,7,3,7,3,5,5,5,2,7,7,3,
 5]