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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 110 |
| 3 | 1024 |
| 4 | 9894 |
| 5 | 96288 |
| 6 | 937926 |
| 7 | 9140400 |
| 8 | 89074638 |
| 9 | 868054608 |
| 10 | 8459432046 |
| 11 | 82439625888 |
| 12 | 803396884086 |
| 13 | 7829331882624 |
| 14 | 76299033606678 |
| 15 | 743555689924752 |
| 16 | 7246159411293342 |
| 17 | 70615870748013744 |
| 18 | 688171560086811582 |
[15,110,1024,9894,96288,937926,9140400,89074638, 868054608,8459432046,82439625888,803396884086, 7829331882624,76299033606678,743555689924752, 7246159411293342,70615870748013744, 688171560086811582] |