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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 75 |
| 3 | 125 |
| 4 | 5625 |
| 5 | 40625 |
| 6 | 390625 |
| 7 | 7890625 |
| 8 | 62890625 |
| 9 | 712890625 |
| 10 | 3212890625 |
| 11 | 68212890625 |
| 12 | 418212890625 |
| 13 | 4918212890625 |
| 14 | 9918212890625 |
| 15 | 759918212890625 |
| 16 | 1259918212890625 |
| 17 | 6259918212890625 |
| 18 | 756259918212890625 |
| 19 | 7256259918212890625 |
| 20 | 42256259918212890625 |
[0,75,125,5625,40625,390625,7890625,62890625, 712890625,3212890625,68212890625,418212890625, 4918212890625,9918212890625,759918212890625, 1259918212890625,6259918212890625, 756259918212890625,7256259918212890625, 42256259918212890625] |