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A331244 as a simple table

na(n)
11
21
32
42
51
62
73
82
93
101
112
123
134
142
153
163
171
182
194
203
214
225
232
243
253
264
271
284
292
303
315
324
335
346
352
363
373
384
394
405
414
421
432
445
453
464
476
485
496
502
513
523
534
544
555
565
574
581
596
602
615
627
633
644
656
665
677
686
697
702
713
723
734
744
754
765
775
785
796
806
811
825
832
843
857
866
874

[1,1,2,2,1,2,3,2,3,1,2,3,4,2,3,3,1,2,4,3,4,5,2,3,
 3,4,1,4,2,3,5,4,5,6,2,3,3,4,4,5,4,1,2,5,3,4,6,5,6,
 2,3,3,4,4,5,5,4,1,6,2,5,7,3,4,6,5,7,6,7,2,3,3,4,4,
 4,5,5,5,6,6,1,5,2,3,7,6,4]