The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 45 |
| 3 | 75 |
| 4 | 135 |
| 5 | 259 |
| 6 | 863 |
| 7 | 1786 |
| 8 | 2483 |
| 9 | 2538 |
| 10 | 5731 |
| 11 | 16095 |
| 12 | 36692 |
| 13 | 94720 |
[1,3,45,75,135,259,863,1786,2483,2538,5731,16095, 36692,94720] |