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| n | a(n) |
|---|---|
| 8 | 0 |
| 9 | 1 |
| 10 | 131 |
| 11 | 2837 |
| 12 | 36733 |
| 13 | 392532 |
| 14 | 3862958 |
| 15 | 36745885 |
| 16 | 346270455 |
| 17 | 3276723147 |
| 18 | 31384368348 |
| 19 | 305668217577 |
| 20 | 3035028866706 |
| 21 | 30761374688048 |
| 22 | 318435571825333 |
| 23 | 3367380704425616 |
| 24 | 36376061350280633 |
| 25 | 401367264163810215 |
| 26 | 4522617803400779891 |
| 27 | 52030240381937090624 |
[0,1,131,2837,36733,392532,3862958,36745885, 346270455,3276723147,31384368348,305668217577, 3035028866706,30761374688048,318435571825333, 3367380704425616,36376061350280633, 401367264163810215,4522617803400779891, 52030240381937090624] |