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A273851 as a simple table

na(n)
01
15
29
317
421
529
637
769
897
9105
10125
11173
12213
13245
14293
15373
16425
17417
18417
19473
20557
21637
22697
23761
24853
25933
26989
271101
281241
291337
301393
311553
321673
331657
341709
351781
361881
372001
382073
392249
402441
412441
422533
432813
443037
453197
463341
473597
483857

[1,5,9,17,21,29,37,69,97,105,125,173,213,245,293,
 373,425,417,417,473,557,637,697,761,853,933,989,
 1101,1241,1337,1393,1553,1673,1657,1709,1781,1881,
 2001,2073,2249,2441,2441,2533,2813,3037,3197,3341,
 3597,3857]