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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 9 |
| 3 | 15 |
| 4 | 79 |
| 5 | 657 |
| 6 | 2789 |
| 7 | 9679 |
| 8 | 50187 |
| 9 | 122379 |
| 10 | 911783 |
| 11 | 7942511 |
| 12 | 71320919 |
| 13 | 292307479 |
| 14 | 1254424307 |
| 15 | 5649367163 |
| 16 | 25471489371 |
| 17 | 151196109585 |
| 18 | 513167692755 |
| 19 | 4381764642655 |
| 20 | 29243835423341 |
| 21 | 209688880294187 |
| 22 | 1635709191538759 |
| 23 | 9050289283302795 |
| 24 | 40510463137400579 |
| 25 | 159199144373303265 |
| 26 | 672166886239228581 |
| 27 | 3264163837045382109 |
| 28 | 22816461252418921287 |
| 29 | 152055680315368539533 |
| 30 | 570344377866479916661 |
| 31 | 3765597736734681752239 |
| 32 | 26013973013767849104195 |
[1,3,9,15,79,657,2789,9679,50187,122379,911783, 7942511,71320919,292307479,1254424307,5649367163, 25471489371,151196109585,513167692755, 4381764642655,29243835423341,209688880294187, 1635709191538759,9050289283302795, 40510463137400579,159199144373303265, 672166886239228581,3264163837045382109, 22816461252418921287,152055680315368539533, 570344377866479916661,3765597736734681752239, 26013973013767849104195] |