The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 224 |
| 4 | 32173 |
| 5 | 21668208 |
| 6 | 69961268156 |
| 7 | 1077372801893440 |
| 8 | 79222784184855853978 |
| 9 | 27809964251933826835780981 |
| 10 | 46605836505704256743057461864323 |
[1,8,224,32173,21668208,69961268156, 1077372801893440,79222784184855853978, 27809964251933826835780981, 46605836505704256743057461864323] |