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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 256 |
| 3 | 1600 |
| 4 | 6400 |
| 5 | 19600 |
| 6 | 50176 |
| 7 | 112896 |
| 8 | 230400 |
| 9 | 435600 |
| 10 | 774400 |
| 11 | 1308736 |
| 12 | 2119936 |
| 13 | 3312400 |
| 14 | 5017600 |
| 15 | 7398400 |
| 16 | 10653696 |
| 17 | 15023376 |
| 18 | 20793600 |
| 19 | 28302400 |
| 20 | 37945600 |
| 21 | 50183056 |
| 22 | 65545216 |
| 23 | 84640000 |
| 24 | 108160000 |
| 25 | 136890000 |
| 26 | 171714816 |
[16,256,1600,6400,19600,50176,112896,230400, 435600,774400,1308736,2119936,3312400,5017600, 7398400,10653696,15023376,20793600,28302400, 37945600,50183056,65545216,84640000,108160000, 136890000,171714816] |