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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 289 |
| 3 | 9248 |
| 4 | 63266116 |
| 5 | 10249110792 |
| 6 | 554962779291904 |
| 7 | 284140942997454848 |
| 8 | 62291092000572728444176 |
| 9 | 77863865000715910555220000 |
| 10 | 48803803104917291287339317067776 |
| 11 | 126499457647945619016783509839675392 |
[2,289,9248,63266116,10249110792,554962779291904, 284140942997454848,62291092000572728444176, 77863865000715910555220000, 48803803104917291287339317067776, 126499457647945619016783509839675392] |