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A263574 as a simple table

na(n)
00
10
21
31
42
52
63
74
84
95
105
116
126
137
148
158
169
179
1810
1910
2011
2112
2212
2313
2413
2514
2615
2715
2816
2916
3017
3117
3218
3319
3419
3520
3620
3721
3821
3922
4023
4123
4224
4324
4425
4525
4626
4727
4827
4928
5028
5129
5230
5330
5431
5531
5632
5732
5833
5934
6034
6135
6235
6336
6436
6537
6638
6738
6839
6939
7040
7140
7241
7342
7442
7543

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