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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 256 |
| 3 | 1008 |
| 4 | 3969 |
| 5 | 10080 |
| 6 | 25600 |
| 7 | 52000 |
| 8 | 105625 |
| 9 | 187200 |
| 10 | 331776 |
| 11 | 536256 |
| 12 | 866761 |
| 13 | 1310848 |
| 14 | 1982464 |
| 15 | 2851200 |
| 16 | 4100625 |
| 17 | 5670000 |
| 18 | 7840000 |
| 19 | 10502800 |
| 20 | 14070001 |
| 21 | 18364896 |
| 22 | 23970816 |
| 23 | 30614688 |
| 24 | 39100009 |
| 25 | 49023520 |
| 26 | 61465600 |
| 27 | 75852000 |
| 28 | 93605625 |
[16,256,1008,3969,10080,25600,52000,105625,187200, 331776,536256,866761,1310848,1982464,2851200, 4100625,5670000,7840000,10502800,14070001, 18364896,23970816,30614688,39100009,49023520, 61465600,75852000,93605625] |