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A364034 as a simple table

na(n)
11
21
33
41
55
63
79
81
919
105
1133
123
1365
149
15135
161
17257
1819
19513
205
211035
2233
232049
243
254101
2665
278211
289
2916385
30135
3132769
321
3365571
34257
35131085
3619
37262145
38513
39524355
405
411048577
421035
432097153
4433
454194455
462049
478388609
483
4916777225
504101
5133554691
5265
5367108865
548211
55134217765
569

[1,1,3,1,5,3,9,1,19,5,33,3,65,9,135,1,257,19,513,
 5,1035,33,2049,3,4101,65,8211,9,16385,135,32769,1,
 65571,257,131085,19,262145,513,524355,5,1048577,
 1035,2097153,33,4194455,2049,8388609,3,16777225,
 4101,33554691,65,67108865,8211,134217765,9]