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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 75 |
| 3 | 9750 |
| 4 | 997500 |
| 5 | 99975000 |
| 6 | 9999750000 |
| 7 | 999997500000 |
| 8 | 99999975000000 |
| 9 | 9999999750000000 |
| 10 | 999999997500000000 |
| 11 | 99999999975000000000 |
| 12 | 9999999999750000000000 |
| 13 | 999999999997500000000000 |
| 14 | 99999999999975000000000000 |
| 15 | 9999999999999750000000000000 |
[0,75,9750,997500,99975000,9999750000, 999997500000,99999975000000,9999999750000000, 999999997500000000,99999999975000000000, 9999999999750000000000,999999999997500000000000, 99999999999975000000000000, 9999999999999750000000000000] |