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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 40 |
| 3 | 144 |
| 4 | 417 |
| 5 | 1032 |
| 6 | 2272 |
| 7 | 4568 |
| 8 | 8545 |
| 9 | 15072 |
| 10 | 25320 |
| 11 | 40824 |
| 12 | 63553 |
| 13 | 95984 |
| 14 | 141184 |
| 15 | 202896 |
| 16 | 285633 |
| 17 | 394776 |
| 18 | 536680 |
| 19 | 718784 |
| 20 | 949729 |
| 21 | 1239480 |
| 22 | 1599456 |
| 23 | 2042664 |
| 24 | 2583841 |
| 25 | 3239600 |
| 26 | 4028584 |
| 27 | 4971624 |
| 28 | 6091905 |
| 29 | 7415136 |
| 30 | 8969728 |
| 31 | 10786976 |
| 32 | 12901249 |
| 33 | 15350184 |
[1,8,40,144,417,1032,2272,4568,8545,15072,25320, 40824,63553,95984,141184,202896,285633,394776, 536680,718784,949729,1239480,1599456,2042664, 2583841,3239600,4028584,4971624,6091905,7415136, 8969728,10786976,12901249,15350184] |