The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 432 |
| 3 | 8748 |
| 4 | 559872 |
| 5 | 28978992 |
| 6 | 1509045552 |
| 7 | 79222650048 |
| 8 | 4146049651392 |
| 9 | 217126339216128 |
| 10 | 11369937986534592 |
| 11 | 595387976257771200 |
| 12 | 31177761046838020800 |
| 13 | 1632634490394925956288 |
| 14 | 85493509927692733685952 |
[0,432,8748,559872,28978992,1509045552, 79222650048,4146049651392,217126339216128, 11369937986534592,595387976257771200, 31177761046838020800,1632634490394925956288, 85493509927692733685952] |