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A307446 as a simple table

na(n)
11
23
33
43
55
67
77
89
911
1011
1111
1213
1313
1413
1511
169
179
189
1911
2011
2111
2213
2315
2415
2517
2619
2719
2819
2921
3023
3123
3225
3327
3427
3527
3625
3725
3825
3927
4029
4129
4231
4333
4433
4533
4635
4737
4837
4939
5041
5141
5241
5343
5443
5543
5641
5739
5839
5939
6041
6141
6241
6343
6445
6545
6647
6749
6849

[1,3,3,3,5,7,7,9,11,11,11,13,13,13,11,9,9,9,11,11,
 11,13,15,15,17,19,19,19,21,23,23,25,27,27,27,25,
 25,25,27,29,29,31,33,33,33,35,37,37,39,41,41,41,
 43,43,43,41,39,39,39,41,41,41,43,45,45,47,49,49]