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| n | a(n) |
|---|---|
| 3 | 3 |
| 4 | 4 |
| 5 | 15 |
| 6 | 21 |
| 7 | 63 |
| 8 | 92 |
| 9 | 255 |
| 10 | 385 |
| 11 | 1023 |
| 12 | 1585 |
| 13 | 4095 |
| 14 | 6475 |
| 15 | 16383 |
| 16 | 26332 |
| 17 | 65535 |
| 18 | 106761 |
| 19 | 262143 |
| 20 | 431909 |
| 21 | 1048575 |
| 22 | 1744435 |
| 23 | 4194303 |
| 24 | 7036529 |
| 25 | 16777215 |
| 26 | 28354131 |
| 27 | 67108863 |
| 28 | 114159427 |
| 29 | 268435455 |
| 30 | 459312151 |
| 31 | 1073741823 |
| 32 | 1846943452 |
| 33 | 4294967295 |
| 34 | 7423131481 |
| 35 | 17179869183 |
[3,4,15,21,63,92,255,385,1023,1585,4095,6475, 16383,26332,65535,106761,262143,431909,1048575, 1744435,4194303,7036529,16777215,28354131, 67108863,114159427,268435455,459312151,1073741823, 1846943452,4294967295,7423131481,17179869183] |