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| n | a(n) |
|---|---|
| 1 | 25 |
| 2 | 100 |
| 3 | 400 |
| 4 | 1600 |
| 5 | 6400 |
| 6 | 25600 |
| 7 | 102400 |
| 8 | 409600 |
| 9 | 1638400 |
| 10 | 6553600 |
| 11 | 26214400 |
| 12 | 104857600 |
| 13 | 419430400 |
| 14 | 1677721600 |
| 15 | 6710886400 |
| 16 | 26843545600 |
| 17 | 107374182400 |
| 18 | 429496729600 |
| 19 | 1717986918400 |
| 20 | 6871947673600 |
| 21 | 27487790694400 |
| 22 | 109951162777600 |
| 23 | 439804651110400 |
| 24 | 1759218604441600 |
[25,100,400,1600,6400,25600,102400,409600,1638400, 6553600,26214400,104857600,419430400,1677721600, 6710886400,26843545600,107374182400,429496729600, 1717986918400,6871947673600,27487790694400, 109951162777600,439804651110400,1759218604441600] |