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A081725 as a simple table

na(n)
11
22
34
43
55
65
77
87
96
108
1115
127
1310
1410
159
168
1711
1810
1911
2014
2113
2214
2313
2411
2512
2615
2716
2820
2921
3013
3114
3214
3317
3413
3516
3616
3716
3817
3917
4017
4120
4216
4320
4422
4526
4619
4713
4815
4919
5021
5121
5225
5321
5421
5521
5621
5725
5825
5927
6031
6127
6220
6322
6426
6528
6620
6721
6817
6921
7023
7124
7222
7322
7422

[1,2,4,3,5,5,7,7,6,8,15,7,10,10,9,8,11,10,11,14,
 13,14,13,11,12,15,16,20,21,13,14,14,17,13,16,16,
 16,17,17,17,20,16,20,22,26,19,13,15,19,21,21,25,
 21,21,21,21,25,25,27,31,27,20,22,26,28,20,21,17,
 21,23,24,22,22,22]