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A273482 as a simple table

na(n)
01
15
25
317
49
529
621
765
825
977
1037
11113
1257
13141
1469
15225
1689
17253
18101
19305
20121
21333
22133
23417
24169
25477
26205
27569
28257
29709
30309
31897
32361
33845
34333
351001
36377
37989
38381
391081
40385
411077
42461
431129
44465
451349
46509
471609
48601
491613
50653
511817
52697

[1,5,5,17,9,29,21,65,25,77,37,113,57,141,69,225,
 89,253,101,305,121,333,133,417,169,477,205,569,
 257,709,309,897,361,845,333,1001,377,989,381,1081,
 385,1077,461,1129,465,1349,509,1609,601,1613,653,
 1817,697]