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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 80 |
| 5 | 24 |
| 6 | 680 |
| 7 | 246 |
| 8 | 802 |
| 9 | 46 |
| 10 | 8024 |
| 11 | 6802 |
| 12 | 4680 |
| 13 | 24680 |
| 14 | 246802 |
| 15 | 46802 |
| 16 | 468024 |
| 17 | 68024 |
| 18 | 680246 |
| 19 | 80246 |
| 20 | 8024680 |
| 21 | 2468024 |
| 22 | 68024680 |
| 23 | 24680246 |
| 24 | 80246802 |
| 25 | 4680246 |
| 26 | 802468024 |
| 27 | 680246802 |
| 28 | 468024680 |
| 29 | 2468024680 |
| 30 | 24680246802 |
| 31 | 4680246802 |
[0,2,4,6,80,24,680,246,802,46,8024,6802,4680, 24680,246802,46802,468024,68024,680246,80246, 8024680,2468024,68024680,24680246,80246802, 4680246,802468024,680246802,468024680,2468024680, 24680246802,4680246802] |