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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 15 |
| 4 | 27 |
| 5 | 63 |
| 6 | 113 |
| 7 | 255 |
| 8 | 489 |
| 9 | 1023 |
| 10 | 1997 |
| 11 | 4095 |
| 12 | 8081 |
| 13 | 16383 |
| 14 | 32533 |
| 15 | 65535 |
| 16 | 130769 |
| 17 | 262143 |
| 18 | 523421 |
| 19 | 1048575 |
| 20 | 2095563 |
| 21 | 4194303 |
| 22 | 8384669 |
| 23 | 16777215 |
| 24 | 33547905 |
| 25 | 67108863 |
| 26 | 134201597 |
| 27 | 268435455 |
| 28 | 536845769 |
| 29 | 1073741823 |
| 30 | 2147420733 |
| 31 | 4294967295 |
| 32 | 8589853339 |
[1,3,5,15,27,63,113,255,489,1023,1997,4095,8081, 16383,32533,65535,130769,262143,523421,1048575, 2095563,4194303,8384669,16777215,33547905, 67108863,134201597,268435455,536845769,1073741823, 2147420733,4294967295,8589853339] |