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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 25 |
| 3 | 126 |
| 4 | 645 |
| 5 | 3375 |
| 6 | 18125 |
| 7 | 100000 |
| 8 | 565625 |
| 9 | 3265625 |
| 10 | 19140625 |
| 11 | 113281250 |
| 12 | 673828125 |
| 13 | 4013671875 |
| 14 | 23876953125 |
| 15 | 141601562500 |
| 16 | 836181640625 |
| 17 | 4913330078125 |
| 18 | 28717041015625 |
| 19 | 166931152343750 |
| 20 | 965118408203125 |
[1,5,25,126,645,3375,18125,100000,565625,3265625, 19140625,113281250,673828125,4013671875, 23876953125,141601562500,836181640625, 4913330078125,28717041015625,166931152343750, 965118408203125] |