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A214745 as a simple table

na(n)
21
31
43
53
65
72
87
97
109
113
125
1311
1413
154
1615
177
1817
195
2019
2119
229
236
2423
2523
2615
277
2827
2927
3029
318
3213
3319
3433
359
3635
3715
3837
3910
4023
4139
4217
4311
4443
4543
4645
4712
4835
4947
5049
5113
5221
5351
5431
5514
5655
5723
5857
5915
6059
6135
6225
6316
6463
6563
6665
6717
6839
6967
7051
7118
7229
7371

[1,1,3,3,5,2,7,7,9,3,5,11,13,4,15,7,17,5,19,19,9,
 6,23,23,15,7,27,27,29,8,13,19,33,9,35,15,37,10,23,
 39,17,11,43,43,45,12,35,47,49,13,21,51,31,14,55,
 23,57,15,59,35,25,16,63,63,65,17,39,67,51,18,29,
 71]