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A166090 as a simple table

na(n)
01
15
213
321
429
561
6105
753
8249
9133
1045
11141
12101
13221
14237
15173
16521
17285
18197
19117
20397
21269
22297
23669
24317
25341
26357
27381
28585
29485
301265
31189
322297
33461
34261
351597
36509
37125
38629
39797
40333
411237
42325
43773
442369
45941
46549
47789
481433
491109

[1,5,13,21,29,61,105,53,249,133,45,141,101,221,
 237,173,521,285,197,117,397,269,297,669,317,341,
 357,381,585,485,1265,189,2297,461,261,1597,509,
 125,629,797,333,1237,325,773,2369,941,549,789,
 1433,1109]