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A139252 as a simple table

na(n)
00
11
23
35
47
511
615
717
819
923
1027
1131
1239
1351
1459
1561
1663
1767
1871
1975
2083
2195
22103
23107
24115
25127
26139
27155
28183
29215
30231
31233
32235
33239
34243
35247
36255
37267
38275
39279
40287
41299
42311
43327
44355
45387
46403
47407
48415

[0,1,3,5,7,11,15,17,19,23,27,31,39,51,59,61,63,67,
 71,75,83,95,103,107,115,127,139,155,183,215,231,
 233,235,239,243,247,255,267,275,279,287,299,311,
 327,355,387,403,407,415]