n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 19 |
5 | 230 |
6 | 5098 |
7 | 207536 |
8 | 15891372 |
9 | 2343580752 |
10 | 675458276144 |
11 | 383306076989440 |
12 | 430041136692146912 |
13 | 956431386434331323776 |
14 | 4224539434553753578497024 |
15 | 37106501188130085159785113344 |
16 | 648740172906485727983524271405824 |
17 | 22591360806791558877526051411343415296 |
18 | 1567817808096346724727108606144936617617408 |
[0,1,3,19,230,5098,207536,15891372,2343580752, 675458276144,383306076989440,430041136692146912, 956431386434331323776,4224539434553753578497024, 37106501188130085159785113344, 648740172906485727983524271405824, 22591360806791558877526051411343415296, 1567817808096346724727108606144936617617408] |