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A183293 as a simple table

na(n)
11
22
33
44
56
67
78
89
910
1012
1113
1214
1315
1416
1517
1619
1720
1821
1922
2023
2124
2225
2327
2428
2529
2630
2731
2832
2933
3034
3136
3237
3338
3439
3540
3641
3742
3843
3944
4046
4147
4248
4349
4450
4551
4652
4753
4854
4955
5057
5158
5259
5360
5461
5562
5663
5764
5865
5966
6067
6169
6270
6371
6472
6573
6674
6775
6876
6977
7078
7179
7280
7382
7483
7584
7685
7786
7887
7988
8089

[1,2,3,4,6,7,8,9,10,12,13,14,15,16,17,19,20,21,22,
 23,24,25,27,28,29,30,31,32,33,34,36,37,38,39,40,
 41,42,43,44,46,47,48,49,50,51,52,53,54,55,57,58,
 59,60,61,62,63,64,65,66,67,69,70,71,72,73,74,75,
 76,77,78,79,80,82,83,84,85,86,87,88,89]