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A120233 as a simple table

na(n)
11
22
34
43
56
68
75
810
912
107
1114
129
1317
1418
1511
1621
1722
1813
1925
2015
2128
2216
2330
2432
2533
2619
2720
2837
2938
3040
3123
3224
3344
3445
3526
3627
3749
3850
3929
4053
4154
4231
4357
4458
4560
4634
4735
4836
4965
5066
5168
5239
5370
5472
5541
5642
5776
5843
5978
6080
6181
6246
6347
6448
6586
6688
6789
6851
6992
7052
7194
7296

[1,2,4,3,6,8,5,10,12,7,14,9,17,18,11,21,22,13,25,
 15,28,16,30,32,33,19,20,37,38,40,23,24,44,45,26,
 27,49,50,29,53,54,31,57,58,60,34,35,36,65,66,68,
 39,70,72,41,42,76,43,78,80,81,46,47,48,86,88,89,
 51,92,52,94,96]