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A005375 as a simple table

na(n)
00
11
21
32
43
54
65
75
86
96
107
118
128
139
1410
1511
1611
1712
1813
1914
2015
2115
2216
2317
2418
2519
2619
2720
2820
2921
3022
3123
3224
3324
3425
3525
3626
3727
3827
3928
4029
4130
4231
4331
4432
4532
4633
4734
4834
4935
5036
5137
5237
5338
5439
5540
5641
5741
5842
5942
6043
6144
6244
6345
6446
6547
6647
6748
6849
6950
7051
7151
7252
7353

[0,1,1,2,3,4,5,5,6,6,7,8,8,9,10,11,11,12,13,14,15,
 15,16,17,18,19,19,20,20,21,22,23,24,24,25,25,26,
 27,27,28,29,30,31,31,32,32,33,34,34,35,36,37,37,
 38,39,40,41,41,42,42,43,44,44,45,46,47,47,48,49,
 50,51,51,52,53]