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A210880 as a simple table

na(n)
11
22
31
43
55
62
74
87
97
103
115
129
1310
1412
155
166
1711
1813
1917
2019
218
227
2313
2416
2522
2627
2731
2813
298
3015
3119
3227
3335
3444
3550
3621
379
3817
3922
4032
4143
4257
4371
4481
4534
4610
4719
4825
4937
5051
5170
5292
53115
54131
5555
5611
5721
5828
5942
6059
6183
62113
63149
64186
65212
6689
6712
6823
6931
7047

[1,2,1,3,5,2,4,7,7,3,5,9,10,12,5,6,11,13,17,19,8,
 7,13,16,22,27,31,13,8,15,19,27,35,44,50,21,9,17,
 22,32,43,57,71,81,34,10,19,25,37,51,70,92,115,131,
 55,11,21,28,42,59,83,113,149,186,212,89,12,23,31,
 47]