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A105754 as a simple table

na(n)
11
23
37
415
531
663
7127
8255
9502
101003
112003
123999
137983
1415935
1531807
1663487
17126719
18252936
19504869
201007735
212011471
224014959
238013983
2415996159
2531928831
2663730943
27127208950
28253913031
29506818327
301011625183
312019235407

[1,3,7,15,31,63,127,255,502,1003,2003,3999,7983,
 15935,31807,63487,126719,252936,504869,1007735,
 2011471,4014959,8013983,15996159,31928831,
 63730943,127208950,253913031,506818327,1011625183,
 2019235407]