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A225381 as a simple table

na(n)
11
22
32
44
53
65
74
88
95
108
116
1211
137
1411
158
1616
179
1814
1910
2018
2111
2217
2312
2423
2513
2620
2714
2825
2915
3023
3116
3232
3317
3426
3518
3632
3719
3829
3920
4038
4121
4232
4322
4439
4523
4635
4724
4847
4925
5038
5126
5246
5327
5441
5528
5653
5729
5844
5930
6053
6131
6247
6332
6464
6533
6650
6734
6860
6935

[1,2,2,4,3,5,4,8,5,8,6,11,7,11,8,16,9,14,10,18,11,
 17,12,23,13,20,14,25,15,23,16,32,17,26,18,32,19,
 29,20,38,21,32,22,39,23,35,24,47,25,38,26,46,27,
 41,28,53,29,44,30,53,31,47,32,64,33,50,34,60,35]