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A247617 as a simple table

na(n)
01
15
23
37
41
59
65
711
83
913
107
1115
123
1317
149
1519
165
1721
1811
1923
205
2125
2213
2327
247
2529
2615
2731
287
2933
3017
3135
329
3337
3419
3539
369
3741
3821
3943
4011
4145
4223
4347
4411
4549
4625
4751
4813
4953
5027
5155
5213
5357
5429
5559
5615
5761
5831
5963
6015
6165
6233
6367

[1,5,3,7,1,9,5,11,3,13,7,15,3,17,9,19,5,21,11,23,
 5,25,13,27,7,29,15,31,7,33,17,35,9,37,19,39,9,41,
 21,43,11,45,23,47,11,49,25,51,13,53,27,55,13,57,
 29,59,15,61,31,63,15,65,33,67]