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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 12 |
| 6 | 34 |
| 7 | 187 |
| 8 | 2959 |
| 9 | 48247 |
| 10 | 19840327 |
| 11 | 2510415286599 |
| 12 | 521698566186280239802 |
| 13 | 4471373101273208723788137885117929799 |
| 14 | 1253543310663256238898448262146285580160101720412514117844237110599 |
[1,2,4,7,12,34,187,2959,48247,19840327, 2510415286599,521698566186280239802, 4471373101273208723788137885117929799, 12535433106632562388984482621462855801601017204125\ 14117844237110599] |