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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 192 |
| 3 | 512 |
| 4 | 61440 |
| 5 | 32768 |
| 6 | 5505024 |
| 7 | 2097152 |
| 8 | 251658240 |
| 9 | 134217728 |
| 10 | 35433480192 |
| 11 | 8589934592 |
| 12 | 93802085744640 |
| 13 | 549755813888 |
| 14 | 13194139533312 |
| 15 | 35184372088832 |
| 16 | 71776119061217280 |
| 17 | 2251799813685248 |
| 18 | 7187745005283311616 |
[1,8,192,512,61440,32768,5505024,2097152, 251658240,134217728,35433480192,8589934592, 93802085744640,549755813888,13194139533312, 35184372088832,71776119061217280,2251799813685248, 7187745005283311616] |