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| n | a(n) |
|---|---|
| 0 | 15625 |
| 1 | 18750 |
| 2 | 34375 |
| 3 | 37500 |
| 4 | 87500 |
| 5 | 187500 |
| 6 | 475000 |
| 7 | 1212500 |
| 8 | 2437500 |
| 9 | 6362500 |
| 10 | 12737500 |
| 11 | 25487500 |
| 12 | 50987500 |
| 13 | 101987500 |
| 14 | 206975000 |
| 15 | 530037500 |
| 16 | 1060087500 |
| 17 | 3890025000 |
| 18 | 15175012500 |
| 19 | 45525375000 |
| 20 | 177026512500 |
| 21 | 596222100000 |
| 22 | 2708984250000 |
| 23 | 12765250350000 |
[15625,18750,34375,37500,87500,187500,475000, 1212500,2437500,6362500,12737500,25487500, 50987500,101987500,206975000,530037500,1060087500, 3890025000,15175012500,45525375000,177026512500, 596222100000,2708984250000,12765250350000] |