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A241957 as a simple table

na(n)
11
23
35
47
511
69
715
823
919
1013
1131
1247
1339
1427
1517
1663
1795
1879
1955
2035
2121
22127
23191
24159
25111
2671
2743
2825
29255
30383
31319
32223
33143
3487
3551
3629
37511
38767
39639
40447
41287
42175
43103
4459
4533
461023
471535
481279
49895
50575
51351
52207
53119
5467
5537

[1,3,5,7,11,9,15,23,19,13,31,47,39,27,17,63,95,79,
 55,35,21,127,191,159,111,71,43,25,255,383,319,223,
 143,87,51,29,511,767,639,447,287,175,103,59,33,
 1023,1535,1279,895,575,351,207,119,67,37]