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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 18 |
| 3 | 64 |
| 4 | 100 |
| 5 | 288 |
| 6 | 376 |
| 7 | 999 |
| 8 | 1152 |
| 9 | 3004 |
| 10 | 3032 |
| 11 | 8218 |
| 12 | 7202 |
| 13 | 21144 |
| 14 | 15289 |
| 15 | 52219 |
| 16 | 29158 |
| 17 | 125656 |
| 18 | 46040 |
| 19 | 298334 |
| 20 | 47253 |
| 21 | 705343 |
| 22 | -49854 |
| 23 | 1674042 |
| 24 | -509904 |
| 25 | 4009394 |
| 26 | -2159554 |
| 27 | 9722280 |
| 28 | -7350701 |
| 29 | 23906836 |
| 30 | -22742221 |
[1,8,18,64,100,288,376,999,1152,3004,3032,8218, 7202,21144,15289,52219,29158,125656,46040,298334, 47253,705343,-49854,1674042,-509904,4009394, -2159554,9722280,-7350701,23906836,-22742221] |