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A374909 as a simple table

na(n)
13
25
37
49
511
613
715
817
919
1025
1127
1229
1331
1433
1537
1639
1741
1843
1945
2047
2151
2255
2357
2459
2561
2663
2765
2867
2971
3073
3181
3287
3389
3493
3595
3697
37101
38103
39105
40107
41109
42111
43115
44123
45125
46127
47129
48135
49139
50143
51145
52147

[3,5,7,9,11,13,15,17,19,25,27,29,31,33,37,39,41,
 43,45,47,51,55,57,59,61,63,65,67,71,73,81,87,89,
 93,95,97,101,103,105,107,109,111,115,123,125,127,
 129,135,139,143,145,147]