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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 256 |
| 3 | 1260 |
| 4 | 3984 |
| 5 | 9900 |
| 6 | 21096 |
| 7 | 40376 |
| 8 | 71360 |
| 9 | 118584 |
| 10 | 187600 |
| 11 | 285076 |
| 12 | 418896 |
| 13 | 598260 |
| 14 | 833784 |
| 15 | 1137600 |
| 16 | 1523456 |
| 17 | 2006816 |
| 18 | 2604960 |
| 19 | 3337084 |
| 20 | 4224400 |
| 21 | 5290236 |
| 22 | 6560136 |
| 23 | 8061960 |
| 24 | 9825984 |
| 25 | 11885000 |
| 26 | 14274416 |
| 27 | 17032356 |
| 28 | 20199760 |
| 29 | 23820484 |
[16,256,1260,3984,9900,21096,40376,71360,118584, 187600,285076,418896,598260,833784,1137600, 1523456,2006816,2604960,3337084,4224400,5290236, 6560136,8061960,9825984,11885000,14274416, 17032356,20199760,23820484] |