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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | -1 |
| 2 | 8 |
| 3 | 63 |
| 4 | 224 |
| 5 | 575 |
| 6 | 1224 |
| 7 | 2303 |
| 8 | 3968 |
| 9 | 6399 |
| 10 | 9800 |
| 11 | 14399 |
| 12 | 20448 |
| 13 | 28223 |
| 14 | 38024 |
| 15 | 50175 |
| 16 | 65024 |
| 17 | 82943 |
| 18 | 104328 |
| 19 | 129599 |
| 20 | 159200 |
| 21 | 193599 |
| 22 | 233288 |
| 23 | 278783 |
| 24 | 330624 |
| 25 | 389375 |
| 26 | 455624 |
| 27 | 529983 |
| 28 | 613088 |
| 29 | 705599 |
| 30 | 808200 |
| 31 | 921599 |
| 32 | 1046528 |
| 33 | 1183743 |
[0,-1,8,63,224,575,1224,2303,3968,6399,9800,14399, 20448,28223,38024,50175,65024,82943,104328,129599, 159200,193599,233288,278783,330624,389375,455624, 529983,613088,705599,808200,921599,1046528, 1183743] |