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A205541 as a simple table

na(n)
07
113
225
349
497
5193
6385
7769
81537
93073
106145
1112289
1224577
1349153
1498293
15196489
16393127
17601393
181572569
192152345
206288733
2112581437
2225163413
2328448329
24100641819
25201237343
26402534833
27805204667
281610535807
291443996125
305553474525
315403326825
3219869823897
3351517384737
34101418060445
35206140406927

[7,13,25,49,97,193,385,769,1537,3073,6145,12289,
 24577,49153,98293,196489,393127,601393,1572569,
 2152345,6288733,12581437,25163413,28448329,
 100641819,201237343,402534833,805204667,
 1610535807,1443996125,5553474525,5403326825,
 19869823897,51517384737,101418060445,206140406927]