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A227741 as a simple table

na(n)
11
23
32
44
56
65
79
88
97
1011
1110
1212
1314
1413
1517
1616
1715
1821
1920
2019
2118
2224
2323
2422
2526
2625
2729
2828
2927
3031
3130
3232
3334
3433
3537
3636
3735
3841
3940
4039
4138
4244
4343
4442
4548
4647
4746
4845
4953
5052
5151
5250
5349
5457
5556
5655
5754
5860
5959
6058
6162
6261
6365
6464
6563
6669
6768
6867
6966

[1,3,2,4,6,5,9,8,7,11,10,12,14,13,17,16,15,21,20,
 19,18,24,23,22,26,25,29,28,27,31,30,32,34,33,37,
 36,35,41,40,39,38,44,43,42,48,47,46,45,53,52,51,
 50,49,57,56,55,54,60,59,58,62,61,65,64,63,69,68,
 67,66]