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A169742 as a simple table

na(n)
01
12
21
33
42
51
63
76
85
93
102
111
123
136
143
159
168
173
181
194
203
211
222
231
243
256
263
279
286
293
309
3118
3217
339
344
351
363
372
385
391
402
415
423
432
441
453
462
471
483
496
503
519
526
533
549
5518
5615
579
586
593
609
6118
629
6327
6426
659
661
6710
685
691
704
713
721
734
743
751
764
779
785
794
803
811
824
839
847
854
863
871
882
891
903
916
925
933
942
951
963
976
983
999
1006
1013

[1,2,1,3,2,1,3,6,5,3,2,1,3,6,3,9,8,3,1,4,3,1,2,1,
 3,6,3,9,6,3,9,18,17,9,4,1,3,2,5,1,2,5,3,2,1,3,2,1,
 3,6,3,9,6,3,9,18,15,9,6,3,9,18,9,27,26,9,1,10,5,1,
 4,3,1,4,3,1,4,9,5,4,3,1,4,9,7,4,3,1,2,1,3,6,5,3,2,
 1,3,6,3,9,6,3]