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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 25 |
| 3 | 125 |
| 4 | 625 |
| 5 | 3126 |
| 6 | 15630 |
| 7 | 78150 |
| 8 | 390750 |
| 9 | 1953750 |
| 10 | 9768753 |
| 11 | 48843765 |
| 12 | 244218825 |
| 13 | 1221094125 |
| 14 | 6105470625 |
| 15 | 30527353136 |
| 16 | 152636765680 |
| 17 | 763183828400 |
| 18 | 3815919142000 |
| 19 | 19079595710000 |
| 20 | 95397978550044 |
| 21 | 476989892750220 |
| 22 | 2384949463751100 |
| 23 | 11924747318755500 |
| 24 | 59623736593777500 |
[1,5,25,125,625,3126,15630,78150,390750,1953750, 9768753,48843765,244218825,1221094125,6105470625, 30527353136,152636765680,763183828400, 3815919142000,19079595710000,95397978550044, 476989892750220,2384949463751100, 11924747318755500,59623736593777500] |