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A050828 as a simple table

na(n)
11
21
31
43
55
67
79
811
913
1013
1115
1217
1319
1421
1521
1623
1725
1825
1927
2029
2129
2229
2329
2429
2531
2633
2735
2837
2937
3039
3141
3241
3343
3445
3547
3649
3751
3851
3951
4051
4153
4255
4357
4457
4559
4659
4761
4861
4961
5061
5161
5261
5361
5463
5565
5667
5769
5869
5971
6073
6173
6275
6377
6479
6581
6683
6785
6887
6987
7089
7191

[1,1,1,3,5,7,9,11,13,13,15,17,19,21,21,23,25,25,
 27,29,29,29,29,29,31,33,35,37,37,39,41,41,43,45,
 47,49,51,51,51,51,53,55,57,57,59,59,61,61,61,61,
 61,61,61,63,65,67,69,69,71,73,73,75,77,79,81,83,
 85,87,87,89,91]