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A320040 as a simple table

na(n)
11
21
31
42
52
61
73
81
92
102
111
123
131
144
152
163
173
182
194
201
215
221
234
242
253
263
272
284
291
305
311
326
332
345
353
364
374
383
395
402
416
421
437
441
456
462
475
483
494
504
513
525
532
546
551
567
571
588
592
607
613
626
634
645
655
664
676
683
697
702
718
721
739
741
758
762
777
783
796
804
815
825
834
846
853
867
872
888
891
909

[1,1,1,2,2,1,3,1,2,2,1,3,1,4,2,3,3,2,4,1,5,1,4,2,
 3,3,2,4,1,5,1,6,2,5,3,4,4,3,5,2,6,1,7,1,6,2,5,3,4,
 4,3,5,2,6,1,7,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,1,
 8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9]