n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 72 |
3 | 1056 |
4 | 19968 |
5 | 460800 |
6 | 12533760 |
7 | 392232960 |
8 | 13872660480 |
9 | 546979184640 |
10 | 23781703680000 |
11 | 1130106558873600 |
12 | 58263271479705600 |
13 | 3238634262940876800 |
14 | 193064390900475494400 |
15 | 12285915784575713280000 |
16 | 831229959367865401344000 |
17 | 59578968979556190388224000 |
[1,7,72,1056,19968,460800,12533760,392232960, 13872660480,546979184640,23781703680000, 1130106558873600,58263271479705600, 3238634262940876800,193064390900475494400, 12285915784575713280000,831229959367865401344000, 59578968979556190388224000] |