n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 8 |
4 | 34 |
5 | 347 |
6 | 3666 |
7 | 47484 |
8 | 707480 |
9 | 11971341 |
10 | 226599568 |
11 | 4744010444 |
12 | 108834109034 |
13 | 2714992695407 |
14 | 73169624071138 |
15 | 2118530753728184 |
16 | 65582753432993648 |
17 | 2161565971116312537 |
18 | 75572040870327124064 |
19 | 2793429487732659591888 |
20 | 108847840347732886117874 |
21 | 4459207771645802095292995 |
[1,0,8,34,347,3666,47484,707480,11971341, 226599568,4744010444,108834109034,2714992695407, 73169624071138,2118530753728184,65582753432993648, 2161565971116312537,75572040870327124064, 2793429487732659591888,108847840347732886117874, 4459207771645802095292995] |