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A123579 as a simple table

na(n)
00
11
22
33
43
54
65
75
86
96
106
117
128
138
149
159
169
1710
1810
1910
2010
2111
2212
2312
2413
2513
2613
2714
2814
2914
3014
3115
3215
3315
3415
3515
3616
3717
3817
3918
4018
4118
4219
4319
4419
4519
4620
4720
4820
4920
5020
5121
5221
5321
5421
5521
5621
5722
5823
5923
6024
6124
6224
6325
6425
6525
6625
6726
6826
6926
7026
7126
7227
7327
7427

[0,1,2,3,3,4,5,5,6,6,6,7,8,8,9,9,9,10,10,10,10,11,
 12,12,13,13,13,14,14,14,14,15,15,15,15,15,16,17,
 17,18,18,18,19,19,19,19,20,20,20,20,20,21,21,21,
 21,21,21,22,23,23,24,24,24,25,25,25,25,26,26,26,
 26,26,27,27,27]