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| n | a(n) |
|---|---|
| 1 | 324 |
| 2 | 1296 |
| 3 | 3600 |
| 4 | 10000 |
| 5 | 22500 |
| 6 | 50625 |
| 7 | 99225 |
| 8 | 194481 |
| 9 | 345744 |
| 10 | 614656 |
| 11 | 1016064 |
| 12 | 1679616 |
| 13 | 2624400 |
| 14 | 4100625 |
| 15 | 6125625 |
| 16 | 9150625 |
| 17 | 13176900 |
| 18 | 18974736 |
| 19 | 26501904 |
| 20 | 37015056 |
| 21 | 50381604 |
| 22 | 68574961 |
| 23 | 91298025 |
| 24 | 121550625 |
| 25 | 158760000 |
| 26 | 207360000 |
[324,1296,3600,10000,22500,50625,99225,194481, 345744,614656,1016064,1679616,2624400,4100625, 6125625,9150625,13176900,18974736,26501904, 37015056,50381604,68574961,91298025,121550625, 158760000,207360000] |