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A084937 as a simple table

na(n)
11
22
33
45
54
67
79
88
911
1013
116
1217
1319
1410
1521
1623
1716
1815
1929
2014
2125
2227
2322
2431
2535
2612
2737
2841
2918
3043
3147
3220
3333
3449
3526
3645
3753
3828
3939
4055
4132
4251
4359
4438
4561
4663
4734
4865
4957
5044
5167
5269
5340
5471
5573
5624
5777
5879
5930
6083
6189
6236
6385
6491
6546
6675
6797
6852
6981

[1,2,3,5,4,7,9,8,11,13,6,17,19,10,21,23,16,15,29,
 14,25,27,22,31,35,12,37,41,18,43,47,20,33,49,26,
 45,53,28,39,55,32,51,59,38,61,63,34,65,57,44,67,
 69,40,71,73,24,77,79,30,83,89,36,85,91,46,75,97,
 52,81]