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A110108 as a simple table

na(n)
13
29
315
421
527
639
757
863
981
1093
11105
12117
13165
14171
15183
16189
17201
18219
19225
20243
21256
22279
23303
24309
25333
26351
27363
28375
29381
30387
31405
32417
33441
34453
35471
36489
37512
38543
39549
40567
41579
42603
43633
44651
45657
46669
47687
48693
49723
50729
51741
52777

[3,9,15,21,27,39,57,63,81,93,105,117,165,171,183,
 189,201,219,225,243,256,279,303,309,333,351,363,
 375,381,387,405,417,441,453,471,489,512,543,549,
 567,579,603,633,651,657,669,687,693,723,729,741,
 777]