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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 64 |
| 3 | 216 |
| 4 | 729 |
| 5 | 1782 |
| 6 | 4356 |
| 7 | 8910 |
| 8 | 18225 |
| 9 | 33210 |
| 10 | 60516 |
| 11 | 101598 |
| 12 | 170569 |
| 13 | 269276 |
| 14 | 425104 |
| 15 | 639612 |
| 16 | 962361 |
| 17 | 1393020 |
| 18 | 2016400 |
| 19 | 2827220 |
| 20 | 3964081 |
| 21 | 5411538 |
| 22 | 7387524 |
| 23 | 9858186 |
| 24 | 13155129 |
| 25 | 17213742 |
| 26 | 22524516 |
| 27 | 28974330 |
| 28 | 37271025 |
| 29 | 47228280 |
| 30 | 59845696 |
[8,64,216,729,1782,4356,8910,18225,33210,60516, 101598,170569,269276,425104,639612,962361,1393020, 2016400,2827220,3964081,5411538,7387524,9858186, 13155129,17213742,22524516,28974330,37271025, 47228280,59845696] |