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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 50 |
| 3 | 1052 |
| 4 | 1824 |
| 5 | 65539 |
| 6 | 36804 |
| 7 | 5300099 |
| 8 | 6287267 |
| 9 | 156608074 |
| 10 | 3302332571 |
| 11 | 177148 |
| 12 | 155896317510 |
| 13 | 1212041747339 |
| 14 | 2113843488367 |
| 15 | 5752216689703 |
| 16 | 320659684133768 |
| 17 | 6774649666149786 |
| 18 | 37860400025315399 |
| 19 | 157971147790033100 |
[1,8,50,1052,1824,65539,36804,5300099,6287267, 156608074,3302332571,177148,155896317510, 1212041747339,2113843488367,5752216689703, 320659684133768,6774649666149786, 37860400025315399,157971147790033100] |