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A091813 as a simple table

na(n)
11
21
32
43
53
62
75
86
96
103
117
126
138
145
156
1611
1711
188
1912
2010
218
229
2315
2412
2516
2610
2717
2814
2917
308
3119
3220
3313
3413
3515
3623
3723
3815
3917
4021
4126
4211
4328
4426
4524
4618
4730
4823
4931
5020
5121
5229
5332
5422
5525
5629
5723
5823
5936
6023
6137
6225
6334
6439
6530
6618
6741
6839
6929
7022
7144
7245
7345
7430
7535
7644

[1,1,2,3,3,2,5,6,6,3,7,6,8,5,6,11,11,8,12,10,8,9,
 15,12,16,10,17,14,17,8,19,20,13,13,15,23,23,15,17,
 21,26,11,28,26,24,18,30,23,31,20,21,29,32,22,25,
 29,23,23,36,23,37,25,34,39,30,18,41,39,29,22,44,
 45,45,30,35,44]