The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 16 |
| 4 | 19 |
| 5 | 1208 |
| 6 | 3187 |
| 7 | 5352 |
| 8 | 30984 |
| 9 | 80976 |
| 10 | 126944 |
| 11 | 670251 |
| 12 | 5306279 |
| 13 | 7640616 |
[1,8,16,19,1208,3187,5352,30984,80976,126944, 670251,5306279,7640616] |