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A248956 as a simple table

na(n)
01
13
25
39
413
519
627
737
849
965
1085
11109
12139
13175
14219
15273
16337
17413
18505
19613
20741
21893
221071
231279
241523
251807
262137
272521
282965
293477
304069
314749
325529
336425
347449
358619
369955
3711475
3813203
3915167
4017393
4119913
4222765
4325985
4429617
4533713
4638321
4743501

[1,3,5,9,13,19,27,37,49,65,85,109,139,175,219,273,
 337,413,505,613,741,893,1071,1279,1523,1807,2137,
 2521,2965,3477,4069,4749,5529,6425,7449,8619,9955,
 11475,13203,15167,17393,19913,22765,25985,29617,
 33713,38321,43501]