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A049757 as a simple table

na(n)
03
15
25
39
411
517
621
727
835
945
1051
1161
1273
1385
1499
15115
16123
17143
18159
19175
20195
21217
22237
23259
24283
25305
26323
27353
28377
29403
30431
31463
32495
33525
34561
35591
36623
37657
38693
39735
40769
41803
42845
43879
44929
45969
461009
471055
481105
491155
501199
511251
521301
531349

[3,5,5,9,11,17,21,27,35,45,51,61,73,85,99,115,123,
 143,159,175,195,217,237,259,283,305,323,353,377,
 403,431,463,495,525,561,591,623,657,693,735,769,
 803,845,879,929,969,1009,1055,1105,1155,1199,1251,
 1301,1349]