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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 26 |
| 2 | 650 |
| 3 | 16250 |
| 4 | 406250 |
| 5 | 10156250 |
| 6 | 253906250 |
| 7 | 6347656250 |
| 8 | 158691406250 |
| 9 | 3967285155925 |
| 10 | 99182128890000 |
| 11 | 2479553222047200 |
| 12 | 61988830546110000 |
| 13 | 1549720763526000000 |
| 14 | 38743019084981250000 |
| 15 | 968575477045312500000 |
[1,26,650,16250,406250,10156250,253906250, 6347656250,158691406250,3967285155925, 99182128890000,2479553222047200,61988830546110000, 1549720763526000000,38743019084981250000, 968575477045312500000] |