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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 24 |
| 4 | 25 |
| 5 | 2 |
| 6 | -2 |
| 7 | 0 |
| 8 | -2 |
| 9 | 1 |
| 10 | -3 |
| 11 | 3 |
| 12 | -6 |
| 13 | 9 |
| 14 | -19 |
| 15 | 35 |
| 16 | -70 |
| 17 | 140 |
| 18 | -289 |
| 19 | 603 |
| 20 | -1283 |
| 21 | 2763 |
| 22 | -6031 |
| 23 | 13307 |
| 24 | -29660 |
| 25 | 66710 |
| 26 | -151297 |
| 27 | 345755 |
| 28 | -795695 |
| 29 | 1842994 |
| 30 | -4294316 |
| 31 | 10061643 |
| 32 | -23696379 |
| 33 | 56076739 |
| 34 | -133301692 |
| 35 | 318212959 |
| 36 | -762636889 |
| 37 | 1834568152 |
| 38 | -4428667929 |
| 39 | 10726314536 |
| 40 | -26060812015 |
| 41 | 63505805734 |
[1,8,24,25,2,-2,0,-2,1,-3,3,-6,9,-19,35,-70,140, -289,603,-1283,2763,-6031,13307,-29660,66710, -151297,345755,-795695,1842994,-4294316,10061643, -23696379,56076739,-133301692,318212959, -762636889,1834568152,-4428667929,10726314536, -26060812015,63505805734] |