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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 15 |
| 4 | 27 |
| 5 | 63 |
| 6 | 113 |
| 7 | 255 |
| 8 | 485 |
| 9 | 1023 |
| 10 | 1997 |
| 11 | 4095 |
| 12 | 8081 |
| 13 | 16383 |
| 14 | 32561 |
| 15 | 65519 |
| 16 | 130567 |
| 17 | 262143 |
| 18 | 523461 |
| 19 | 1048511 |
| 20 | 2095111 |
| 21 | 4194299 |
| 22 | 8384999 |
| 23 | 16776701 |
| 24 | 33548267 |
| 25 | 67107025 |
| 26 | 134203375 |
| 27 | 268432959 |
| 28 | 536845055 |
| 29 | 1073733949 |
| 30 | 2147426271 |
| 31 | 4294957873 |
| 32 | 8589830143 |
[1,3,5,15,27,63,113,255,485,1023,1997,4095,8081, 16383,32561,65519,130567,262143,523461,1048511, 2095111,4194299,8384999,16776701,33548267, 67107025,134203375,268432959,536845055,1073733949, 2147426271,4294957873,8589830143] |