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A289791 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1012
1134
1215
1323
1414
1525
1613
1724
1816
1927
2018
2126
2217
2328
2419
2532
2641
2729
2831
2942
3035
3121
3236
3345
3437
3546
3638
3747
3839
3948
4051
4143
4252
4349
4453
4561
4654
4762
4857
4963
5058
5164
5259
5367
5481
5556
5671
5765
5872
5968
6073
6169
6274
6382
6467
6583
6675
6784
6876
6985

[1,2,3,4,5,6,7,8,9,12,34,15,23,14,25,13,24,16,27,
 18,26,17,28,19,32,41,29,31,42,35,21,36,45,37,46,
 38,47,39,48,51,43,52,49,53,61,54,62,57,63,58,64,
 59,67,81,56,71,65,72,68,73,69,74,82,67,83,75,84,
 76,85]