n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 36 |
3 | 588 |
4 | 11025 |
5 | 223587 |
6 | 4769856 |
7 | 105423552 |
8 | 2391796836 |
9 | 55365667500 |
10 | 1302200499600 |
11 | 31026810250800 |
12 | 747229013540100 |
13 | 18158991471060300 |
14 | 444709995209640000 |
15 | 10963583748568324800 |
16 | 271862615765280179025 |
17 | 6775869970094509098675 |
18 | 169647707399403264840900 |
19 | 4264689597367270438867500 |
[1,3,36,588,11025,223587,4769856,105423552, 2391796836,55365667500,1302200499600, 31026810250800,747229013540100,18158991471060300, 444709995209640000,10963583748568324800, 271862615765280179025,6775869970094509098675, 169647707399403264840900, 4264689597367270438867500] |