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A037144 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1515
1617
1718
1819
1920
2021
2122
2223
2325
2426
2527
2628
2729
2830
2931
3033
3134
3235
3337
3438
3539
3641
3742
3843
3944
4045
4146
4247
4349
4450
4551
4652
4753
4855
4957
5058
5159
5261
5362
5463
5565
5666
5767
5868
5969
6070
6171
6273
6374
6475
6576
6677
6778
6879
6982
7083
7185
7286

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,17,18,19,20,
 21,22,23,25,26,27,28,29,30,31,33,34,35,37,38,39,
 41,42,43,44,45,46,47,49,50,51,52,53,55,57,58,59,
 61,62,63,65,66,67,68,69,70,71,73,74,75,76,77,78,
 79,82,83,85,86]