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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 8 |
| 4 | 29 |
| 5 | 148 |
| 6 | 1043 |
| 7 | 11984 |
| 8 | 229027 |
| 9 | 6997682 |
| 10 | 366204347 |
| 11 | 30394774084 |
| 12 | 4363985982959 |
| 13 | 994090870519508 |
| 14 | 393850452332173999 |
| 15 | 249278602955869472540 |
| 16 | 275042591834324901085904 |
| 17 | 488860279973733024992540668 |
| 18 | 1514493725905920009795681408275 |
[1,2,3,8,29,148,1043,11984,229027,6997682, 366204347,30394774084,4363985982959, 994090870519508,393850452332173999, 249278602955869472540,275042591834324901085904, 488860279973733024992540668, 1514493725905920009795681408275] |