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A340684 as a simple table

na(n)
11
22
31
43
54
65
76
87
98
103
119
1210
131
1411
1512
1613
1714
187
194
2015
2114
2216
239
2417
2518
2619
2720
2821
2922
3023
3124
3225
339
343
358
3626
3724
3811
3927
4026
4128
423
4329
4430
4522
4631
471
4832
4933
5034
5135
5236
5314
5437
5535
5638
5739
5810
5940
6041
6122
6242
6343
6444
6545
6646
674
6815
6947
7031
7140
7248
7349
7450
7551
7621
7752
7853
7954
8055
8156
8230
8324
8415

[1,2,1,3,4,5,6,7,8,3,9,10,1,11,12,13,14,7,4,15,14,
 16,9,17,18,19,20,21,22,23,24,25,9,3,8,26,24,11,27,
 26,28,3,29,30,22,31,1,32,33,34,35,36,14,37,35,38,
 39,10,40,41,22,42,43,44,45,46,4,15,47,31,40,48,49,
 50,51,21,52,53,54,55,56,30,24,15]