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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 25 |
| 2 | 144 |
| 3 | 256 |
| 4 | 900 |
| 5 | 1600 |
| 6 | 1764 |
| 7 | 3136 |
| 8 | 8100 |
| 9 | 14400 |
| 10 | 15876 |
| 11 | 28224 |
| 12 | 50176 |
| 13 | 129600 |
| 14 | 142884 |
| 15 | 254016 |
| 16 | 302500 |
| 17 | 1742400 |
| 18 | 1920996 |
| 19 | 3415104 |
| 20 | 3956121 |
| 21 | 7033104 |
| 22 | 8767521 |
| 23 | 15586704 |
| 24 | 27709696 |
| 25 | 64834704 |
| 26 | 94303521 |
| 27 | 167650704 |
| 28 | 298045696 |
| 29 | 617621904 |
[0,25,144,256,900,1600,1764,3136,8100,14400,15876, 28224,50176,129600,142884,254016,302500,1742400, 1920996,3415104,3956121,7033104,8767521,15586704, 27709696,64834704,94303521,167650704,298045696, 617621904] |