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A291543 as a simple table

na(n)
11
22
32
43
56
63
74
811
911
104
115
1218
1348
1418
155
166
1727
18109
19109
2027
216
227
2338
24218
25632
26218
2738
287
298
3051
31405
321649
331649
34405
3551
368
379
3866
39724
404192
4110130
424192
43724
4466
459
4610
4783
481277
4910889
5034801
5134801
5210889
531277
5483
5510

[1,2,2,3,6,3,4,11,11,4,5,18,48,18,5,6,27,109,109,
 27,6,7,38,218,632,218,38,7,8,51,405,1649,1649,405,
 51,8,9,66,724,4192,10130,4192,724,66,9,10,83,1277,
 10889,34801,34801,10889,1277,83,10]