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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 11 |
| 7 | 38 |
| 8 | 272 |
| 9 | 6474 |
| 10 | 1090483 |
| 11 | 4363282578 |
| 12 | 2940715000315189 |
| 13 | 7930047000157075949085439 |
| 14 | 14412592242471457956514645440241289655074 |
| 15 | 70636608026754077888330819116433040562582634705380432362008848092 |
[1,2,2,3,5,11,38,272,6474,1090483,4363282578, 2940715000315189,7930047000157075949085439, 14412592242471457956514645440241289655074, 70636608026754077888330819116433040562582634705380\ 432362008848092] |