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A084453 as a simple table

na(n)
12
23
34
41
57
68
79
85
96
1013
1111
1214
1310
1416
1512
1619
1720
1815
1922
2017
2118
2226
2323
2421
2528
2629
2724
2825
2933
3027
3134
3235
3330
3431
3532
3640
3741
3842
3936
4037
4138
4239
4348
4445
4549
4643
4744
4852
4946
5047
5156
5254
5350
5451
5559
5653
5761
5855
5964
6057
6158
6267
6360
6469
6562
6663
6773
6865
6966
7074
7168
7276

[2,3,4,1,7,8,9,5,6,13,11,14,10,16,12,19,20,15,22,
 17,18,26,23,21,28,29,24,25,33,27,34,35,30,31,32,
 40,41,42,36,37,38,39,48,45,49,43,44,52,46,47,56,
 54,50,51,59,53,61,55,64,57,58,67,60,69,62,63,73,
 65,66,74,68,76]