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| n | a(n) |
|---|---|
| 0 | 484 |
| 1 | 2500 |
| 2 | 63504 |
| 3 | 138384 |
| 4 | 894916 |
| 5 | 1493284 |
| 6 | 5569600 |
| 7 | 8156736 |
| 8 | 22562500 |
| 9 | 30580900 |
| 10 | 70090384 |
| 11 | 90250000 |
| 12 | 181764324 |
| 13 | 225660484 |
| 14 | 413552896 |
| 15 | 499611904 |
| 16 | 852056100 |
| 17 | 1007808516 |
| 18 | 1624090000 |
| 19 | 1888771600 |
| 20 | 2907582084 |
| 21 | 3335062500 |
| 22 | 4943777344 |
| 23 | 5605816384 |
| 24 | 8050755076 |
[484,2500,63504,138384,894916,1493284,5569600, 8156736,22562500,30580900,70090384,90250000, 181764324,225660484,413552896,499611904,852056100, 1007808516,1624090000,1888771600,2907582084, 3335062500,4943777344,5605816384,8050755076] |