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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 25 |
| 3 | 1249 |
| 4 | 62425 |
| 5 | 3120001 |
| 6 | 155937625 |
| 7 | 7793761249 |
| 8 | 389532124825 |
| 9 | 19468812480001 |
| 10 | 973051091875225 |
| 11 | 48633085781281249 |
| 12 | 2430681237972187225 |
| 13 | 121485428812828080001 |
| 14 | 6071840759403431812825 |
| 15 | 303470552541358762561249 |
[1,25,1249,62425,3120001,155937625,7793761249, 389532124825,19468812480001,973051091875225, 48633085781281249,2430681237972187225, 121485428812828080001,6071840759403431812825, 303470552541358762561249] |